This is a short quide on this NPC. This will list what it does/how it works, and the controls for controlling it.
it moves around on a single level (can drop to lower floors) to kill everyone. After a period of a couple of seconds, it will move again to kill (status effect ceases all movement).

When not in the presence of humans, will wonder aimlessly. Can't climb ladders but can go up stairs.
They're very limited, so edit the mod files yourself or live with them.

WASD - movement
F - destroy doors and snap necks

FAQ:

Q: what the id name?
A: scp173