Vampire issues

[Dickles]

Maybe my memory is mistaken, but I think vampire's drain used to kill the instant they ran out of blood. I'm not sure if it was changed or broke but I thought that worked much better. Once they're out of blood, they don't really have anything to offer you and can't really fight back if you want to loot them or something. I only want to kill them so they can be zombified and keep playing, and it takes a while to beat them to death as you mentioned.