Having trouble with Chunk?

I think I may have accidentally come up with the easiest and possibly cheesiest way to kill Chunk.
Just leave the zombie whose got the problem with noise alive and wait for Chunk to be following you down the stairs, pop off a round by the open door to where noise-hater lurks (I used one to pop the Mr. Raccoon) and then run to the blood room.
Chunk follows you to the blood room but behind him the noise-hater follows and combos the heck out of Chunk, and in my Classic difficulty run just TKO'd Chunk.