As for time period, I'm considering having us start in 1950 or so. That gives us plenty of time to develop things I think. All history up until 1950 would have happened obviously, but everything after is dependent on what happens in the game. Also, to avoid all players going to one side, if you want to stage a revolution most likely it'll be a failed revolution. We have a balance of power to keep in order for it to be a true cold war.