Decimator that happens when the server thinks you team killed so it slays you for it the next round.
All you have to do is type !zspawn and you'll come back to life as a humans.

Holy shit the server starts each map with all talk off. Most zm admins turn it on though to hear everything that's going on. If you're human you can't hear the zombie's mic and vice versa and if you're on specator and you can't hear jack.