I remember hearing that only 20 factions can be considered playable at one time in the files. So, if that's true, those who have all except SPQR and rebels playable will already have the maximum. The first time I tried the rebels, it crashed. I then modded out the Numidians, and put slave in. My rebel campaign hasn't crashed yet. Has this idea of a 20 faction maximum been mentioned before, or did I dream it?