I just encountered a strange bug. Basically it allows the spectator to join a duel.

* Picture one is when I shot the two players playing, as spectator lejoon.

* Picture two shows a spot on the map that one of the players shot at and got a hit sound. He then repeatedly shot at the same spot until it stopped resulting in me, the spectator, spawning in the LG/YA room.

* Last picture shows me interacting with the environment by shooting on the wall.

Demo: http://www.speedyshare.com/498608873.html