thanks @LordTriggers! Interesting concept!
Here are a few question to better understand:
Vassals will belong to gaia initially, I presume, so will not be friendly.Trying to capture therefore means first killing their army and then capturing their CC, but wouldn't they just belong to the conquering player's territory? Or will they stay kind of "allied"?
Can anyone else captrure them after you had done that already, i.e. if you don't watch out, they might be allied with your opponent again?
Looks like they deliver their resources to their owner (which would be normal after capturing their CC). Will their stats count in the players stats (e.g. with respect to population cap)?
Sorry for the ignorant questions, just trying to get a grip on your concept.