Do the different characters have different AI behaviors?
While playing left-4-dead with two of my friends we endless joke and complain about Coach's sniper shotgun. He seems to last hit special infected from extreme distances with a shotgun.
Obviously, his super-human aim is attributed to the fact that he's a bot. But what about his preference for a shotgun? How about his bias towards killing special infected over common?
Rochelle on the other hand seems to prefer to mow through common infected like a meat grinder with an automatic rifle.
Is this just me seeing a ghost in the machine or is there more to it?