On a MvM map I am making, I have a sentry gun placed to help the player fight off the bots. However, every time it is in a position to fire, TF2 crashes. I reckon that this is due to the fact that it is owned by no player, so in logging which player killed the robot, there is no name to put, and it glitches. I have tried to solve this problem using triggers and the set_builder command, but this doesnt seem to work. Can anyone help me?