I just fought as KH against the Romans, defending a city I stole from them just north of Rome. I had the arrow artilery, the cubic arrow artilery, and the cheapest stone thrower.

The army ratio was 1:3. Right as the battle starts, the artilery is raining down on the enemy...awesome! As soon as they get within 50 feet of my army, I don't turn the artillery off in time. Needless to say...my commander gets a bigass Metal Arrow artilery through his back...thats the end of that =/