Also I agree it is up to your own personal tastes but its fun to discuss it with others it helps to point out flaws in your own vision and look at 40k in a different way then you did previously.
That's true - it may provide new ideas from new perspectives, and at the very least it serves as information for anyone who may not yet even be aware of conflicting information and interpretations!
Personally, I think one should be cautious when comparing 40k to the modern world, for example when you mentioned intelligence wings. Alternate options to your suggestion would be that they simply lack this kind of department because the IoM prefers a brute force approach and because Warp travel and time distortion make gathering intelligence on a location almost totally useless - or perhaps the Navy does have an intelligence wing and it's just not mentioned anywhere, in which case you are free to simply invent one if you like, just like countless novel authors inventing stuff from time to time. For the Guard, at least GW material mentioned dedicated scouting units, such as the Asgardian Rangers from the Armageddon 3 background. "Fostering pro-Imperial sentiments" before the IoM officially arrives with an invasion force, on the other hand, is said to be what the Orders Sabine are all about.
But all this stuff, including Naval transportation capacity and how many Inquisitors there are and what they do, all depends on which books you read, so it's no wonder just about anyone has a different opinion there. A solid canon being non-existent when it comes to such details is both the blessing and the curse of this franchise ...
Did you ever read the Movie space Marine stats from white dwarf 300?
Hmmh ... did
you
read them?
"Thankfully, most people understand the concept of dramatic license, an amusing little technique that involves exaggerating or ignoring facts, physical laws, and general plausability to keep things entertaining. Space Marines are embellished in fiction, where their heroism and invincibility are accentuated."
- introduction to the WD Movie Marines rules
GW's fluff is based on and built around the rules, hence various Codex quotes regarding the Marines being dependent on assistance from the Imperial Guard "if an enemy is too numerous or too well entrenched", or stuff like Rogal Dorn saying that one Astartes equals ten Guardsmen.
I'd say if the Space Marines in the tabletop would be held back by concerns of balancing, a rather easy solution would be to simply up their points cost, like how it was done with GKs. Besides, there's a reason it's called "Movie Marines" rather than "True Marines" or "Actual Marines".
The truth is that there is no truth - at least not an objective one. There is GW's version of the Space Marines, then there are novel Space Marines (several versions of them, depending on whether they are protagonist or antagonist), videogame Space Marines, FFG Space Marines ... and they are all equally valid .
Pick the one you like most, just be aware that not everyone may agree with your choice.
Edited by Lynata