The vampire is more of a unique opponent, rather than a run of the mill enemy. In my setting, only one exists for his sins...simulated from the Dracula story (Stoker), but altered some.
Instead of crosses, the severed and dried legs of chickens can be worn around the next (must be in plain sight) to repulse the vampire. As for the attack, the vamp just open his mouth, takes in a deep breath and the target's soul is sucked in (no more than one or two attacks, otherwise even the most powerful enemy will be cut down by then). Decided to scrap the zombie idea for the victims.
Maybe a super-powerful DRAIN attack, targetting BODY instead of STUN?