Do not forget, Your AI team mates will not always shoot at the turret guy, he will sit there and look around and then the defusing AI WILL GET SHOT. I have tried to get him to shoot many times many different ways with many people and all fail, best chance is to go the glitch by yourself if you have lots of time. If you get 2 people and are good like me
you can get 100+ Xp every SECOND.