When I started a server with a stable health of 0, upon rotting to death, I became a sort of walking corpse (sideways view, score screen, no visible weapon, etc). I could still fire a weapon (which always seems to be a Nex gun) and even kill the bots I was playing with. It didn't seem like they could see me as they never attacked me, but upon hit with splash damage, I properly died and respawned. Don't know if you guys heard about this before, so thought I ought to post it, especially cause playing with a stable health of 0 is a lot of fun
Anyway, game mode was last man standing, and the problem happened everytime I let myself die by rot, so it should be easily repeatable.