Once again - people looks to ignore me in this!

PDF have some rights IG haven't. They're allowed to have combined arms companies (Imperial Guard infantry company can't have it's own artillery or tanks, for example), and they are not obliged to be supervised by Commisariate.

Question is can and should PDF protect off-planet objects in their system?

But what you say is false. Imperial Guard has rules that stop it from being able to be autonomous in its star spanning mission.

The same applies to PDF automatically, since they can't wage war on a star-spanning level. So no, the PDF doesn't get more than the IG. And IG regiments are regularly combined to get what you call combined arms, so yes, Imperial Guard has the same thing than PDF at this level.

About the speed of ships, well, in many books it doesn't take very long to move in system and we speak more in days than weeks.

Ahm. You know there is Russian joke - "samurai without a sword is same with samurai with a sword but without a sword". Imperial Guard regiments can't be created as combined (and that's why you need to combine regiments, solve logistical problems, ensure officer communications and so on. That was done specially to prevent any one colonel to command full-scale force. Of course. But PDF is free from that limitation. There can be one officer who control full PDF forces, including artillery and aviation.

Imperial Guard regiment also have commisars who are outside common line of command and have supreme supervising power, and PDF is free from this limitation also.

Imperial Guard regiment also have strict LoC with subsectoral and sectoral command, and PDF haven't, Imperial Governor is their last authority.

So PDF controlled more loosely that IG. Maybe it's strange, maybe it's because Gilliman never looks at PDF as something worthy of note, maybe it's because common IG squadron have better training or better equipment, but you can't say "even IG haven't it so PDF should not have it too". PDF have some rights IG haven't.

Off the top of my head...

I would think PDF would have low orbit/aerospace capable craft (say similar to a Valkyri or argus lighter), yet would be limited on account they are the 40k equivalent of a national guard.

The Astra Militarum/Imperial Guard (and Navy) would more than likely have such vehicles.

Saying tht the new splat book Enemies Without could have some of those vehicles, maybe updated traits for a Guncutter.

Well, I believe I should put it this way.

Imperial Guard is an Imperial organization, ruled by Imperial laws so they have that limiting regulations.

But PDF isn't imperial, they are planetary. I can't find any evidence that there is ANY legal regulations what PDF should be except that they should exist. They can use power armors and bolters, if planet can afford it (and problem is no planet can afford to use marine-class armory), and there will be no any law breaking.

Agreed

I believe the bit about banning Imperial Guard from having combined arms specifically meant infantry/voidships, not a traditional sense of tanks/artillery/infantry combined arms. The edict was put in place to prevent exactly the sort of thing you are asking - ground forces under the same control as the void ships that brought them to combat.

Voidships are impossibly expensive, so it would take a very wealthy planetary governor to be able to afford even the smallest cargo freighter. What use would he have for a single voidship, when for the same price he could buy 10 in-system defense monitors?

Furthermore, what use is a voidship when the governor's PDF will never, ever leave the planet or system? They are the PLANETARY Defense Force, after all. Functionally they are a national guard, a reserve, a relief force. Not an army or corps of marines in their own right.

I believe the bit about banning Imperial Guard from having combined arms specifically meant infantry/voidships, not a traditional sense of tanks/artillery/infantry combined arms. The edict was put in place to prevent exactly the sort of thing you are asking - ground forces under the same control as the void ships that brought them to combat.

If that kind of jumps is possible it's usefulness is obvious. If it's not... well, there is a lot of another usage for voidship, but not in PDF.

Not an army or corps of marines in their own right.

Okay

From what fluff I have read...aeronautica is about the limit of IG, possibly if you are willing to extend it to low earth orbit aerospace type vehicles. Yet they would be few and far between.

The void capable fighter-bombers fits in with Imperial Navy/Rogue Traders, or the system's Battlefleet which patrols the system/sector.

Pdf if they are lucky might have freighters or lighters imho as void craft, but anything more and the Adeptus Munitorum might want to have a word with the governor and the staff. A pdf force with void capable fighter capable vehicles in sufficient number could be construed of the beginnings of an insurrection against the Imperium.

Pdf if they are lucky might have freighters or lighters imho as void craft, but anything more and the Adeptus Munitorum might want to have a word with the governor and the staff.

"What's wrong? I'm paying Imperial taxes fully and I'm build solid defence grid, as I'm obliged to!"

But, I believe, having void crafts can lead to increasing taxes from planet. "If they can afford it, they are rich!"

At the end of the day it is your campaign, your game, and your head-canon. If you feel that it would be okay for a PDF to have a voidship, then by all means go ahead. Coming to the forums to ask and then argue with what everyone says is pointless if you've already made up your mind.

There is nothing in the fluff that would suggest the PDF having any sort of offensive capability, as the entire purpose of the PDF is a defensive one. While they are not bound by the same limits as the Imperial Guard, they do not in any way supplant the role of the Imperial Guard. Most PDF are sub-par, and the best among them are typically the ones tithed into the Imperial Guard.

Voidships are the purview of Rogue Traders, Imperial Navy, Adeptus Mechanicus, Space Marines, Chartist Captains, and occasionally Inquisitors. These aren't like boats that can be simply bought, they are effectively priceless relics that take decades to build for even the smallest example. Most of those who own a voidship do so because it was part of an inheritance, not something then just went out and bought. Planetary governors are wealthy, make no mistake - but purchasing a voidship is often times beyond even them.

Scintilla (not even Scintillan Governer, but Scintilla! and it's governor who approve it's military budget) IS rich. It is very rich. I believe yearly military budget of Scintilla can allow very big spending. It's nothing with possibility of Imperial Governor to be wealth. Having private nuclear aircraft carrier is beyond Obama personal wallet, but USA have 10, 2 in build and 1 more ordered. And they can afford themselves such more military beyond supercarriers.

P.S. By the way, do you know about Ultramar Auxilia?

What I mean behind being a purely defensive organization is that a planet's PDF is by and large restricted to that specific planet, or the home system. They do not leave the system to attack other systems or planets; they are the Planetary Defense Force of the world that raised them. While they may be very well equipped (rarely are) or have access to vehicles, technology, and combined arms tactics (also rare) they are ultimately confined to their own planet in order to defend it.

That being said, this is primarily why everyone in this thread has disagreed with the idea of the PDF having a voidship. Voidships are used to travel between systems. PDF doesn't travel between systems. Why would it need a voidship?

The PDF has access to In-system ships that are essentially voidships without the capability to travel in the void. They lack a Geller Field and Warp Drive, because there is no need for them to travel outside the system to which they belong. They have weapons, they attack invaders, but they do not leave the system they belong to as that isn't part of their job.

Look at it this way: The Imperial Guard and Imperial Navy are offensive organizations as their primary objective is to attack the enemies of mankind. They carry out invasions, and attack enemies on enemy worlds. PDF are defensive in that they are reserve forces. They stay in their own system and defend their homeworlds from enemies that attack them, but PDF doesn't participate in wars outside of their world/system. If the PDF fails, then the Guard/Navy is called in.

Edit: As far as your Scintilla example goes, the governor of Scintilla is in fact the Sector Governor Marius Hax. So yes, he could probably buy a voidship or two but he has bigger things to worry about than outfitting the PDF of Scintilla with ships they won't need. The Ultramar Auxilia are an exception, rather than the rule as far as PDF go.

The PDF has access to In-system ships that are essentially voidships without the capability to travel in the void. They lack a Geller Field and Warp Drive, because there is no need for them to travel outside the system to which they belong. They have weapons, they attack invaders, but they do not leave the system they belong to as that isn't part of their job.

Aenno, I think you're missing the point: A PDF can raise all kinds of regiments and/or in system navies for the purpose of planetary or system defense. But, Once you get into the realm of Warp capable vessels you are beyond the purvue of a PDF!

Whether or not your Governor could personally own a Warp capable vessel at all is technically a separate matter. There are a couple of instances in the fluff of high-level nobles owning personal Voidship Yachts (Something similar to a Vagabond or Orion class transport). The problem comes when your governor uses such a vessel to transport PDF (Or any ground troops for that matter!) they are stepping outside their rights! In fact, The only people who can maintain ground forces AND Voidships are Space Marine chapters and Rogue traders. Your governor is neither!

Your Governor could technically charter a vessel from either a Chartist Captain or RT to transport mercenaries since both have rights to do things the PDF can not.

What I'm trying to say is, If your goal is for your governor is looking for some way to bring an assault force to another system, he better find a way to do it that does not involve a Personally owned warship transporting your own personal troops. It's not that localized interstellar wars don't happen between Imperial worlds (They do!), It's that the Imperial has specific prohibitions against putting those forces together under one flag!

Imperial Guard is an Imperial organization, ruled by Imperial laws so they have that limiting regulations.

But PDF isn't imperial, they are planetary. I can't find any evidence that there is ANY legal regulations what PDF should be except that they should exist. They can use power armors and bolters, if planet can afford it (and problem is no planet can afford to use marine-class armory), and there will be no any law breaking.

They are troops from an Imperial World, so they are Imperial. And if the commissariat, the IG or what else come in order to apply their mandate, PDF will have to bow and follow. It happens for Imperial Guard to accept letting command of a local theatre to PDF officiers either because of political manoeuvering or because of their experience, but the Imperial Guard is an institution while PDF are just "retarded farmers defending their homestead".

The mandate of a planetary commander is to defend his world/system. he can have picket ships to do that (many novels see important worlds having this), but once his troops do anything more than protecting their home world/system, it goes against the mandate of the planetary commander and it is against Imperial Law.

It is not because there are no clear descriptions of what the PDF can or can't do that they can do things the IG can't. It is simply not very much told about because the game at first didn't focus on it. In my opinion, it is clear that the PDF doesn't have rights that the Guard doesn't have.

But here is a dark area not treated much by the background.

Imperial Guard regiments can't be created as combined (and that's why you need to combine regiments, solve logistical problems, ensure officer communications and so on. That was done specially to prevent any one colonel to command full-scale force. Of course. But PDF is free from that limitation. There can be one officer who control full PDF forces, including artillery and aviation.

Okay then, so for 5 minutes in a camping, what you say is true, PDF has combined arms while the guard doesn't. Five minutes later, the Lord Commander of the campaign has decided to comine elements of the army under HIS command, elements that are now combining everything from artillery to infantry. And now, you've got a legal guard army, under the command of "one officer", with combined forces.

Fact is, it comes to the same thing in the end.

The difference is, the PDF doesn't have any rights out of the fiefdom of their master.

What I'm trying to say is, If your goal is for your governor is looking for some way to bring an assault force to another system, he better find a way to do it that does not involve a Personally owned warship transporting your own personal troops.

I'm telling it again.

IF it's possible to make short range warp-jumps INSIDE system, then voidship can be used to use it inside system. Not leave it but have an ability to make fast reaction when somebody attack off-world settelment on the other side of system. Not attacking anybody, defend off-world locations attached to same system administrativly, catch pirates and so on.

And I want to point (again) that PLANET is not something that should be defined as "people'. It's, well, planet, administrative body of it's own right. Governors come and go, planet remains.

And if the commissariat, the IG or what else come in order to apply their mandate, PDF will have to bow and follow.

Well, no.

Commissariat, the IG or what else will ask Imperial Governor, who will order PDF to obey IG orders. Or he will not. Or they will consult each other in the joint command. That's described sometimes in Kain series - and there is a way to suppress this. You will declare martial law, execute Governor, take his authority and use this authority to control planetary forces.

And Ultramarines use their PDF as auxillary forces all over the Imperium. That's not Space Wolves, who demonstratively ignore Imperial laws, that's Ultramarines, shining beacon of Law, Order and Stupid Followness of Codexes.

The mandate of a planetary commander is to defend his world/system. he can have picket ships to do that (many novels see important worlds having this), but once his troops do anything more than protecting their home world/system, it goes against the mandate of the planetary commander and it is against Imperial Law.

Yup. And this army will have it's own warships - as Macharius had. Warp-capable ones. On Lord Commander command. And one of this ship will be Lord Commander's flagship, as "Lord of Light" for Macharius.

And now you've got a legal guard army with voidships.

The difference is, the PDF doesn't have any rights out of the fiefdom of their master.

Once again - people looks to ignore me in this!

PDF have some rights IG haven't. They're allowed to have combined arms companies (Imperial Guard infantry company can't have it's own artillery or tanks, for example),

Are you talking about combined arms companies or combined arms regiments ?

Well, no.

Commissariat, the IG or what else will ask Imperial Governor, who will order PDF to obey IG orders. Or he will not. Or they will consult each other in the joint command. That's described sometimes in Kain series - and there is a way to suppress this. You will declare martial law, execute Governor, take his authority and use this authority to control planetary forces.

And Ultramarines use their PDF as auxillary forces all over the Imperium. That's not Space Wolves, who demonstratively ignore Imperial laws, that's Ultramarines, shining beacon of Law, Order and Stupid Followness of Codexes.

First of all, Ciaphais Kain ain't the best serie to demonstrate the 40k universe, but since there is no canon, you take what you want.

On the other hand, you've got the Gaunt's Ghosts series when imperial army come in a planet to help in a local civil war and the guard command decides NOT TO take over command of the theatre to RESPECT local procedures and doctrines. They have the power.

In the novel Necropolis, the local army has its own commissariate, but when **** just get real, real commissariate take over discipline and command of the PDF. More than this, Guard command seize command of the theatre.

PDF is subject to Imperial war laws, as you like to call them. Imperial Guard is the suprem authority in the domain of the imperial war effort and if this means that the Departemento Munitorum decides that all your PDF are drafted, they will. if the commissariat decides that your dump planetary force captain of the Rhin's Watch is incomptetent, he will shoot him. Because Imperial Guard, in the domain of the war effort, is the supreme authority. That doesn't mean there ain,t not paperwork to do, but they have more than PDF will ever get because the defense of the Imperium's domains is their purview.

Ok, drop a question "where can you initiate warp jump". Let's say Governer is VERY RICH (let's say he is a heir for long line of governers some wealthy planet) and VERY PROUD. He uses his personal and planetary resourses (Imperial tax didn't fail) to buy a voidship. He can do it, right? There are some examples, not mine, in this thread. Then he uses this voidship to defend his system and transport PDF forces inside system. NOT OUSIDE, INSIDE. Let's say it's not used warp drive, but it have one. Ok, let's say Governer is stupid; happens.

Is IT against Imperial Law?

It would be legal in my opinion (in my head-canon); I've also seen this in many books where worlds were rich enough to have their own defense fleet.

Ships goes so fast in 40k that in system, it takes them less than days to cover a system end to end.

This isn't true, as shown in the Rogue Trader books. It depends on the size of the system, but for most systems, it can easily take over a month to get from one end to another. Just traveling from the edge of the system to its core is typically around 3 weeks of travel. With a skilled Navigator you'll spend far less time in the Warp than in the void when traveling from one system to another.

Sources seem to vary on this to whatever the plot demands.

Even if you can make warp jumps within the gravity of a star system would you really want to risk opening a hole to the warp anywhere near a populated planet?! What if something goes wrong, it would be catastrophic. You'd also probably want to be far enough away as to at least not be potentially visible in the sky from the planet's surface.

Pdf if they are lucky might have freighters or lighters imho as void craft, but anything more and the Adeptus Munitorum might want to have a word with the governor and the staff.

"What's wrong? I'm paying Imperial taxes fully and I'm build solid defence grid, as I'm obliged to!"

But, I believe, having void crafts can lead to increasing taxes from planet. "If they can afford it, they are rich!"

"What's wrong" is you are wasting the resource of a rare and valuable warp capable ship on the defense of one planet or star system where the warp engine and gellar field are of no use. Also gathering warp capable vessels could cast suspicion that you are trying to gain the resources to try to secede from the Imperium.

As I said in an earlier post if there are multiple locations within a system important enough to defend then presumably each location would have PDF resources permanently assigned to it capable of at least holding out until reinforcments from other parts of the system arrived.

Along with non-warp capable patrol ships and space stations/defense satellites, many important systems also tend to have a few naval ships available to assist and could perhaps convince/pay Rogue Traders or other vessels within system to temporarily help in an emergency.

Yes it is. The PDF is subject to Imperial Laws. Which, amongst other things, technically means it can't have Starships (as meaning qarp capable) in its inventory rather than voidships. And it is subject to ordo prefectus oversight, it's just less rigouously applied.

However, whilst the SDF (system defense fleet) can't have a warp capable flagship. However, rules are much more flexible for Peers Of the Imperium.

The Lord Governor can own a warp-capable starship. And if he hapoens to allow the Pdf use of it as a transport, fair enough. Equally, it will provably have an SDf crew, but technically its not an SDF asset. You get iolations of the nominal rules al the time at this level. Macharius, as an Imperial Warmaster/Lord Solar, is technically above both the Imperial Guard and Imperial Navy chain of command. The navy Lord Admiraland Guard Lord General are equals and cannot mutualky give one another orders - the Admiral can't even order a regular guardsman about -but a warmaster can command both branches. That's why the rank is issued so rarely and requires high lord approval. On any smaller campaign the Navy can be asked for support but doesn't have to provide it.

A similar example is the Ultramar Auxillia - space marines cannot give orders to guardsmen or pdf. However, tge auxillia ultimately report to Lord Macragge -a legally distinct individual who holds rank in the Administratum who just happens to occupy the same body as the chapter master of the Ultramarines. As a Peer of the Imperium, people politely ignore his multiple personas where inconvenient

Intra-system warp jumps arent a thing. It's never been mentioned, and as noted, a significant proportion of a starships travel time is falling in from and climing out tothe mandeville point -which is associated with the star, not any world within it.

In some books, there are intra system warp jumps, but these are very dangerous things. The kind of things you do when very desesperate.

Well, no.

Commissariat, the IG or what else will ask Imperial Governor, who will order PDF to obey IG orders. Or he will not. Or they will consult each other in the joint command. That's described sometimes in Kain series - and there is a way to suppress this. You will declare martial law, execute Governor, take his authority and use this authority to control planetary forces.

And Ultramarines use their PDF as auxillary forces all over the Imperium. That's not Space Wolves, who demonstratively ignore Imperial laws, that's Ultramarines, shining beacon of Law, Order and Stupid Followness of Codexes.

First of all, Ciaphais Kain ain't the best serie to demonstrate the 40k universe, but since there is no canon, you take what you want.

On the other hand, you've got the Gaunt's Ghosts series when imperial army come in a planet to help in a local civil war and the guard command decides NOT TO take over command of the theatre to RESPECT local procedures and doctrines. They have the power.

In the novel Necropolis, the local army has its own commissariate, but when **** just get real, real commissariate take over discipline and command of the PDF. More than this, Guard command seize command of the theatre.

PDF is subject to Imperial war laws, as you like to call them. Imperial Guard is the suprem authority in the domain of the imperial war effort and if this means that the Departemento Munitorum decides that all your PDF are drafted, they will. if the commissariat decides that your dump planetary force captain of the Rhin's Watch is incomptetent, he will shoot him. Because Imperial Guard, in the domain of the war effort, is the supreme authority. That doesn't mean there ain,t not paperwork to do, but they have more than PDF will ever get because the defense of the Imperium's domains is their purview.

I belive there is a difference for "you have a legal right to do something" or "you have a power to do something". Of course, commisar CAN shoot some PDF commanding officer and take control. Well, he have a funny hat and bolt pistol. But it will be a cause for trbunal later - not that definitly means tribunal WILL happen or that if it happen it will end by guilt admiting.

And of course really when the **** came out PDF generals will run to local IG and will ask to take command.

And no, Imperial Guard ISN'T supreme authority in the domain of war effort. Even Imperial Army wasn't. Warmaster of the Crusade can be - in his domain, but Imperial Guard leader trying to give an order to Space Marine (supreme authority?) on the local battlefield can end his life very, very quick. And Space Marine haven't any authority to rule Imperial Guard leader - but, I believe, if it's real **** here Space Marine Seargant who happens to be here can give an order and it will be respected by local guardsman.

"What's wrong" is you are wasting the resource of a rare and valuable warp capable ship on the defense of one planet or star system where the warp engine and gellar field are of no use.

But I can do it. I'm an Imperial Governer, and as it said in fluff all over the books (well, in Core Rulebook for example) Imperium-level structures rare looks for his affairs. Until he have failed to pay taxes and to give out psykers and IG forces he obliged to do.

I have resources, I use them as good as I could.

A similar example is the Ultramar Auxillia - space marines cannot give orders to guardsmen or pdf. However, tge auxillia ultimately report to Lord Macragge -a legally distinct individual who holds rank in the Administratum who just happens to occupy the same body as the chapter master of the Ultramarines. As a Peer of the Imperium, people politely ignore his multiple personas where inconvenient

What do you mean by "people politely ignore"? What's wrong here?

And that's exactly is what I mean. To command PDF you should be a leader by local rights, not by imperial IG chain of command. And local commands can include Space Marines, because why the hell no? And then Lorf Macragge says so, PDF loading into war barges and going all over the Imperium to fight Ultramarine wars.

It is possible that Codex Astartes forbid marines to control PDF or Imperial Guard, but looks like it isn't. After all Lord Macragge is the best living specialist about it, and if I get Ultramarines right he is oblige it.

I belive there is a difference for "you have a legal right to do something" or "you have a power to do something". Of course, commisar CAN shoot some PDF commanding officer and take control. Well, he have a funny hat and bolt pistol. But it will be a cause for trbunal later - not that definitly means tribunal WILL happen or that if it happen it will end by guilt admiting.

And of course really when the **** came out PDF generals will run to local IG and will ask to take command.

And no, Imperial Guard ISN'T supreme authority in the domain of war effort. Even Imperial Army wasn't. Warmaster of the Crusade can be - in his domain, but Imperial Guard leader trying to give an order to Space Marine (supreme authority?) on the local battlefield can end his life very, very quick. And Space Marine haven't any authority to rule Imperial Guard leader - but, I believe, if it's real **** here Space Marine Seargant who happens to be here can give an order and it will be respected by local guardsman.

Imperial Guard as an institution is the supreme authority. Difference is, Space Marines doesn't wage war. They are warrior monk that give martial time in duty to the Imperium. They are not an army.

PDF is. Imperial Guard is.

And no, there won't be a tribunal for a commissar shooting PDF officer. They are the legal authority in matter of military discipline. If they think PDF must be shot, PDF will be shot, and this will end there, unless the commissar goes on a rampage or whatever mental bubble happens to him, but he would get tribunal in this case even if he did that inside the Imperial Guard.

And that's exactly is what I mean. To command PDF you should be a leader by local rights, not by imperial IG chain of command. And local commands can include Space Marines, because why the hell no? And then Lorf Macragge says so, PDF loading into war barges and going all over the Imperium to fight Ultramarine wars.

It is possible that Codex Astartes forbid marines to control PDF or Imperial Guard, but looks like it isn't. After all Lord Macragge is the best living specialist about it, and if I get Ultramarines right he is oblige it.

The reforms of Roboute Guilliam interdicted permanent command of mortal troops to Space Marines. The fact that the chapter from which the Codex Astartes and those reforms origin is using mortal troops doesn't, at all, say that this is right. This just means that even Ultramarines aren't that shiny an example to follow.

You're in grimdark 40k. In this universe, everyone has his flaws and problems. And if something is done, it is not because it is legal in-universe, it's generally because people are mortals with their flaws and act accordingly.

Imperial Guard as an institution is the supreme authority. Difference is, Space Marines doesn't wage war. They are warrior monk that give martial time in duty to the Imperium. They are not an army.

I can't see why do you tell "even if he did that inside the Imperial Guard". The main purpose of Commisariate existence is to do it inside Imperial Guard. Question is have he a right to do it outside Imperial Guard - because PDF isn't any way connected to Imperial Guard chain of command. They are not, well, Imperial Guardsmen.

After all, by Imperial Law, PDF isn't Imperial troops after all. It's personal levy of Imperial Governor, that he is obliged to use to defend his world as Imperial vassal. At least Imperial Guard codex says so.

That's why PDF are fequently rebel or support rebels, and that's why Imperial leaders prefer not to lean on them.

The reforms of Roboute Guilliam interdicted permanent command of mortal troops to Space Marines. The fact that the chapter from which the Codex Astartes and those reforms origin is using mortal troops doesn't, at all, say that this is right.

I'm sorry, but can you point me a source? I found only things about mixing Marines with mortal troops works bad because AA can't really know limitations of common mortal fighter, but nothing about hard ban.

I do not have my codexes with me at the moment, so I can't cite you nothing at the moment (I did ressearch on the internet, but wikis are as reliable as they are). I will, later if it is still useful for you

After Horus Heresy, they declared that no Space Marine commanders should have more than his marines under his command and this, for two reasons: the one you cited just there, and the other to stop a same commander of having too much power under his hands.

What about Navy for example?

Navy is another element of the story, they conduct and control spaceships. If a PDF has space ships, I would apply same logic: Navy would have authority in this matter.

I can't see why do you tell "even if he did that inside the Imperial Guard"

Reread what I wrote; I said that even inside the guard, if a Commissar kills for no good reason, he will be trial.

After all, by Imperial Law, PDF isn't Imperial troops after all. It's personal levy of Imperial Governor, that he is obliged to use to defend his world as Imperial vassal. At least Imperial Guard codex says so.

PDF are Imperial Troops as much as citizen are Imperial Citizen.

If the guard come to your world, they come with the Departemento Munitorum's approval. And the Departemento Munitorum could say "you are now all imperial guardsmen"

if a general of the Astra Militarum come on a world and say "you work like this", he can get all the power he wants to do it, unless the Munitorum doesn't see its necessity.

Reread what I wrote; I said that even inside the guard, if a Commissar kills for no good reason, he will be trial.

If the guard come to your world, they come with the Departemento Munitorum's approval. And the Departemento Munitorum could say "you are now all imperial guardsmen"

Well, I'm not sure it's definitly Munitorium decision, but it's possible. It's kind of "extended recruting in emergency". But this is something should be said, and than that troopers will leave their chains of command and enter Imperial Guards ranks.

Before that my troops aren't obliged to open imperial tactical manuals even once and to know which end of lasgun is deadly.

if a general of the Astra Militarum come on a world and say "you work like this", he can get all the power he wants to do it, unless the Munitorum doesn't see its necessity.