I had started a Custom Game (Easy mode) on Tranzit; i'd just put a turbine up (on round two) and was still inside the bus depot room, but it got destroyed by a zombie - lets call him Paul. I then knifed a zombie next to Paul - Bob, after Paul finished hurling at the turbine, just as it was about to blow up. It blew up during the time i was knifing Bob and nothing happened. However, when I next went to knife Paul (this was my first time knifing or attacking him, and as it was round two it should have taken 2 knifes), I knifed him once, and he remained alive for maybe a quarter of a second while he attacked me, and then suddenly, he and all the other zombies in the room just collapsed in front of me. Does anyone know why this is?