I like the idea of Civil War! I think it should be more than 4 planets though... happiness can be hard to maintain, especially if you meet the Darloks

or some other high intel race.
I currently am playing a game where I am 5th out of 12 and winning more through intel (food contamination and anarchy Groups) than with my fleets.
The capital being destroyed trigger is excellent. How would a world be designated the system capital?
Anyhoo, this sounds like a great idea especially if there is a trigger in the set-up that allows it to be toggled on/off.
Jason2