BIG UPDATE----
zombies can swim now(some of them cant)
zombies can attack when they move.
SCP-049 Fixed. Now when he lost target he plays alert sounds.
fixed cure, when player in god mode scp 049 keeping curing him.
Better HitBoxes
added random death animations to guard
while NPC is swiming, it cant play death animation.
Better footsteps for NPCs
Added better icons

UPDATE! Added HUD and more features for zombies.

Initial addon creation.