AC I = 10/10

AC II = 10/10

AC B = 8.5/10

AC R = 8/10

AC III = 8.5/10

your problem is that you agree to the peace treaty (and let me guess, most of the times there a little for you or nothing at all in these treaties) just continue the war with him and make peace with every one else until you wipe him from the face of the earth once and for all.

to do that it's very important to keep scientific superiority and to be first in entering every era as fast as you can.

I would really like a Medieval 3 and Rome 2 will be even better, but i don't know about a civil war theme because there will be no variety of factions it'll be only just two. But i really would like a WWII theme; something like a combination of the total war over all strategy and a Company of Heroes battles and game play

you can try "Company of Heroes" or "Sid Meier's Civilization V"