Yesterday I was driving around NWAF with my V3S and noticed a military variant of an infected. I proceeded to kill it by running it over, but it didn't die. I then remember the collision between entities had been turned off, so I continued driving towards the fire station. Then I noticed the movement of the undead was really glitchy when it was chasing after me.

When I arrived at the airfield, the infected ran inside the truck, so I stopped. But when I went outiside, it didn't run at me, but stood still glitched inside the back of the truck. I proceeded to kill it and that's when its chest glitched and treched out weirdly.

Same thing happened after 4 infected chased after me and I parked on front of a barrack.