I think 0 AD is more of a clone of BFME 2 with historically accurate features instead of Middle Earth. If it is supposed to be a clone of BFME 2, then yes we should have battalion systems, except the bannerman would fight. It is historically accurate that bannermen were the best men in their regiments. If It is more of AOE, then no. I don't think it is Total War like because in Total War the just have gold. Nothing except food, and population (at least Rome 1, and Medieval 2. I haven't played the new ones)