(x) months later, with lots of research, i could do this bug when i want.
Hard mix of movements, but the result is to kill and let the body on the floor without the ability of respawn.
The dead body, sometimes can walk like a immortal zombie without weapons. But no respawn possible (funny to watch move!)
Sometimes, the animations of the killer are bugged too. Legs, lasers, etc in the wrong side.
After this no respawn/kill bug happen, you can explore over the frontline of map. No 10sec to death!
Many other strange thinks happen with this bug.
QUESTION : I don t know where i could speak with people to resolve that? I have video to prove the bug and way to do it easly.