Quote Originally Posted by Innocentius
Personally I don't like using siege equipment in battles unless it's a bridge battle. The morale penalty for the enemy is lessened by the fact that you bring fewer troops to the field, which means that you risk a morale penalty on your own men if you bring too many siege engines and the crews get routed really easily, possibly creating mass routs as the AI counts routing units, not routing men. On top of that, I find them to be really useless at killing enemies. Even in bridge battles I've never seen a Culverin Crew kill more than 70-80 men, and that was a one-time occasion, whereas your average unit of Arbalesters will kill somewhere around 100 men in a standard bridge battle.
I just had a Demi-Culverin kill the Turkish Sultan, at extreme long range and I was attacking. Well worth it. It's valour went up too. I think Serpentines are the best at killing guys though at long range. not sure though. I know organ guns rip it up on defending bridge battles and defending castles.