When someone controls a monster they can do everything that the monster does. Like pick up dead bodies and rip em apart. and make sounds. And other attacks. Maybe make it when they rip the bodies apart they gain health?
What i suggest for you to put in the game is a screwdriver weapon system. Here's some info about it. Screwdriver Controls that will work for the game: Hold right click to ready attack. Press left click while holding right click to stab, the weapon is a charged-based weapon. Stabbing will cause bleed...