This is exactly the problem and why the rostering for a war needs to change. No more slotting different factions no more same 50 people fighting in every different territory.
What do you mean nerf war? So people can swap factions?
Same on the pushing a territory part. I mean I have several ideas from adding “control points” to territories that act like a fort in that it can be claimed. Once claimed the “control points” (these could be lumber mills, farms, mines etc all the shit you would need for a siege) start accumulating resources for the company/alliance/faction that took it. The idea is there is let’s say 3 control points in the territory and holding/taking them grants “war resources” to a collective pool that slowly fills by itself very slowly but faster with each point that has been captured. Alternatively the company that controls the territory can take the points and if all 3 are held they can push the influence back down or slow it with fewer etc When the meter fills if a company contributed 70% alone the dec is theirs if not it gets rolled on the way it is now. (This is only if shell companies are completely gone.) If the points are ignored by all the war will simply be an auction able to be claimed by any opposing company.
Ofc there is a crap load of details to hammer out but the point is if they would stop working on stupid stuff like instruments and focus on getting the base game play loop into an acceptable spot it wouldn’t take that long and would pay dividends in player retention.