If so, how? Also can a chapter rule a small system of planets on it's own if it had gone rogue?
If so, how? Also can a chapter rule a small system of planets on it's own if it had gone rogue?
Could you answer on my 2nd question though?
Many chapters don't refer to him as a God just a I'm sure guilliman doesn't now. And they seem to govern their own systems and worlds pretty well. Macragge and fenris for instance so yes they could
I mean literally rulling a system and it's people without the Eclysiarcy or anyone else intervening
Yes they could probably rule a system pretty well on there own. They don't need the other aspects
Ultramar is still pretty much under the auspices of the Ultramarines and their successor chapters. The Inquisition has free rein, but the UM are counted as the Imperial sector governance and do not have to proselytise the Imperial Cult.
Most Chapter Masters are also Lord Governors of their vassal world and, other than psykers to the Black Ships, they don’t suffer any tithe requirements.
Such Heresy directed at "Our Most Holy Emperor of Mankind" will brand any and all "Excommunicate Traitoris" and have a hearty "Damnatio Memoriae" issued by our local friendly Inquisition. Somethings are better left unknown and undisturbed.
If a space marine chapter was in control of a system then went rouge it would be difficult to do due to the many factors you would have to consider. The first one being that chapters only are built up of about 1000 space marines and then many more support units. Since the existing chapters th ave to creat new chapters whenever they get too large the rogue chapter would have to find a way to hide all of the extra space marines from an imperium that keeps close tabs on all of its forces. Next they would need to rally all of the inhabited planets within that system behind them and that would include the guard regiments within the system against a enemy that would have many more marine chapters to deploy along with trillions of other guard units to deploy. If needed the inquisition would allow exterminatus to be used on the planets they could afford to lose.
But certain if not all rogue chapters are not codex compliant so then they could contain more than 1000 marines like the Black Templars they have a range of 1000-6000 Marines if im not mistaken
BTW Black Templars are not rogue
So it would be plausible only if the had many more space marines than a chapter is allowed to