About zombies and splitting the head: the vampire should suck blood from people and he will accumulate a bar of blood filling, and when there is a sufficient level - you can apply the detachment of the head through the context menu of the head (Bottom), and the zombie (Same as freezing) is used with a hand in the foreground, only freezing is on a living person, and a zombie is on a dead person (with a hand in the background - a vampire sucks blood).