Do a search on the official forums for the "unified zombie pack". They have some cool zombies, and the scripts are pretty good. Custom animations and all.
However, Kueter is working on a great campaign called "D vs the Undead". Basically you get to play the role of a vampire hunter in it. I am making a custom addon for him to use; a vampires pack. The vampires slash at you with their hands; they leap through the air, and they throw fireballs and even cars at you. I've also got skeletons and hellhounds, and lots of magic spells. There's even some custom weapons. Kueter's squad, the Disciples, are working on making Werewolves too. And we may be able to put together a working sword weapon, but that remains to be seen.
Anyway, just letting you know that there is a horror campaign being worked on out there, aside from the zombie campaigns. I can't tell you when it will be released, but it will definately be a one-of-a-kind campaign when it finally is.
-General Barron