LOL, and i thought being hit by 3 balistas, 6 catapults and 4 trebuchets of flaming deaths are bad...good thing you are allied with HRE

i must add that it seems to be a bit disturbing and funny when (guarding a bridge), AI HRE keep sending the vanguard units of catapults charging across the bridge, with or without infantry/cavalry support.

i did remembered that i suggested that artillery pieces (spares) can be use to block the bridge. i'll amend that suggestion to - "If AI has artillery units, wait for them to come to your side of the bridge so that you slaughter their crews, as AI has a grudge against its own artillery and would be more than happy to assist player to kill them off"

thankyou for all the helpful feedbacks on modifying the files. i will try it tonight.