The Huns and other nomadic people offer a different way of fighting, but The Last Roman DLC doesn't have them. Everyone had guys with spears and shields. Well, people mostly fought in certain ways in this period. I don't have Rome II, so I can't compare that, but I was baffled how you can make this time period this boring with every faction having essentially the same units with different skins for some reason. I must admit, I only ever played the Belisarius campaign from the The Last Roman DLC and found the campaign mechanics really good and playing a Roman horde was fun, but the battles were extremely boring.