A couple of years ago I did one of these topics discussing Imperial ranks, and I landed on advocating for Himser's effort at rationalising them. Since then I've become dissatisfied with pretty much everything around the Imperial military, so having decided to use the Smacksart templates to try and hammer it all into something that makes sense to me I thought eff-it and did my own version of the ranks as well.
Enjoy the results of my obsessiveness, maybe someone else will get some use out of it:
I'll go into some of my reasoning, but I left it until after the pics so people with a low tolerance for Saxonite blethering don't have to subject themselves
For the ranks I'm using the colour conventions established with R1/Solo/Rebels, but I'm ignoring a couple of specifics(the Galen Erso/Ops Colonel rank from the behind the scenes on R1, because it doesn't fit the pattern and because they didn't even follow it themselves - Erso gets a 4Yellow-1Red in the film, not 5Yellow-1Red as they said; and the assignment of 3Blue-2Red to "Captain" as a rank for the Navy, because that doesn't jive with the fact Kallus confirms 3Primary-2Secondary is Commander rank and because I prefer keeping Captain as a rank for the other branches) and added a wee embellishment(technically all the one-block ranks should be "Ensign", but using Midshipman for Navy and Subaltern for Ops feels more thematic and when all of them were actual ranks IRL they were equivalent). I'm using Himser's setup of the double-row red-over-blue bars for appointed/tasked ranks, because once they decided to feature them in Rebels and some of the nuCanon comics, the old(bad, but it existed) explanation that they were a post-Yavin reworking of Imperial ranks didn't hold up anymore.
For the template designs, my main goal is to see an end to the parade of Overly Specific Troopers we've been getting. As a rule, if one of the new Trooper types is wildly divergent from the norm, I've tried to use context clues within the canon to make them into examples of a branch of the military, rather than taking every single thing as unique and specific as Pablo & Co seem determined to. I couldn't find a use for the Shore Trooper design despite quite liking it(especially in proper white rather than beach chique colours) because it's just too specific - when your basic Stormtrooper armour can with minimal modification be used underwater, on active lava fields, and even in the vacuum of space then the idea it's going to struggle with above-average humidity levels seems a bit farcical. And yes, I know the thematic callout is to tropical dress in IRL militaries, but those exist because the only way for a fabric uniform to be tolerable in hot humid climes is to make it with lighter fabric and less of it, it doesn't have a climate-controlled undersuit like ST gear. And yes, "snowtroopers", but it's been evident for a while that despite the name it's more of a general purpose "hostile environment" armour set - flametroopers use it so it's resistant to both extremes of temperature, it's been deployed to post-blast Jedha so it can clearly handle particulates and other atmospheric nasties and so on. Shore Troopers are superficially similar conceptually, but the comparison doesn't hold up.
One choice I expect some people will be puzzled by is the Imperial Intelligence uniform, my logic goes like this: I didn't care for the notion that the ISB white jacket uniform was now just a generic "intelligence officer" uniform, and I dismissed it out of hand when I dug into the cite notes on the wook and realised the whole notion is based on reading words to the effect of "a uniform worn by members of the intelligence community" to mean "members of the intelligence community wear this uniform" and combining that with "and this other book confirms Imperial Intelligence are part of the intelligence community(uh-duh), so they must wear the white ones"(not kidding, that chain of logic is laid out right there in the cites), when the initial phrase could just as easily be read as "the people wearing the uniform are members of the intelligence community", which the ISB are. A perfect example in fact of the ludicrously exclusive way of thinking that defines the way the lore people approach the Imperial military - before long we'll be getting Pilots-The-HCVw-A9-Turbo Tank-But-Only-Every-Other-Thursday Troopers. As to why I went with the grey and black rather than the more common fanon approach of all-black - firstly, in nuCanon all-black is already used by Stormtroopers, Naval Security, and "staff officers"; secondly, the only depictions we do have of anyone associated with Imperial Intelligence in nuCanon in a uniform are Galen Erso's olive-grey with pale mint-grey accent panels getup after he joins the Tarkin Initiative(which is under Advanced Weapons Research, which is managed by Imperial Intelligence), and the Information Office department seen in Rebels which wear a unique jumpsuit variant in the same grey tone that show uses for all the standard Imperial uniforms; and thirdly(finally), there's those brief shots of background extras on the Death Star in ANH wearing a grey jacket with black trousers and cap which haven't been given any specific association in nuCanon or elsewhere, and while that appears to be a lighter grey colour and probably actually was, those olive tunics are renowned for being the original version of that white&gold/black&blue dress meme, changing perceived colour and tone radically based on lighting or the colour grading of a scene, so to me it hits "eh, close enough" territory. It also seems fitting - the [colour] tunic with black trousers and cap does echo the ISB uniform a bit, while using the standard officer olive-grey for the jacket colour seems fitting for the organisation also(properly?) known as Military Intelligence.
Anyway, let the nitpicking commence