Unplayable factions

So somebody played this factions?
How these factions can be made playable?
somebody have a file or something?

I think it's the same way as with Rome.

Does anyone know, have the unlockable factions been given as much attention as the starting ones? In Rome, the Romans had more battle speeches and everything which annoyed me.

I presume you just beat SP once, and the rest get unlockable, Expect for Factions like Aztecs or the Mongols, which you can only play on Custom Battles, or my Favortie, MP :) :)