ArmA 3 - Zombie script

My WIP zombie mission script. Developped under ArmA 2 (no public release) and ported to ArmA 3 (not yet released). Attack and eating animations are not yet immersive. But the script is more efficient than most of other zombie systems. I mean that zombies are more reactive and agressive. Zombies can be configured to be fast or slow. Headshot is more efficient. Unprotected vehicles (quad, moto) and static weapons (mortar, ...) are not safe. Other vehicles are not totally safe : zombie can damage it... then get humans out. The script can be used with or without the automatic zombies spawning system (i.e. zombie can be put manually in the editor).