Will they work together against mankind in the coming Biblically predicted Zombie Apocalypse?
Or are either of the undead independent agents under no higher powers control?
Re read Revelation Gezo.
or should I say read it for the 1st time.
I’m not going to give you Chapter and verse.You should read from the beginning to the end and see all those other things you missed while cherry picking. The dead rising from their graves and walking the earth is right in there.
So read it after you finish reporting yourself.

Well. see, it depends on the kind of zombies and vampires
Zombies are most likely not the risen dead, more likely the result of science. therefore they would probably not work for any deity or demon
Vampires however typically are satanic. they would work for satan. however, there are probably free minded vamps out there that work for themselves.

I dont see a biblical zombie apocalypse coming, or a vamp apocalypse for that matter. if its a apocalypse that does revolve around the bible, then it will most likely be demons that come for our souls.