Aggressive factions are unrealistic

[Megas Methuselah]

(I don't think they exist in Empire or Napoleon, but they might do).

Yeah, they exist in Empire. Pretend you conquer France. If that province becomes rebellious and successfully casts aside your authority, rather than the rebels becoming part of the standard rebel faction, it becomes a re-emergent France. Almost all of the factions in ETW can re-emerge from rebellions in their former-capital provinces, which is one of the few reasons why I love the game.

we are looking at the possibility of having re-emergent factions though.

I hope everything works out, bro.