You shoot one of the guards who falls over in pain, the other two raise their staffs more and their fingers move in on the triggers (By that I mean the switchy things that make them fire). It seems like the end...
....until their bodies suddenly convulge (I'm sorry if this isn't spelt right 🙁) in a blue lightning and they fall to the floor. Pomey is stood behind them. "Come on! We've got to get the hell out of here!" He shoots the bodies another time so they die and runs back around the corner behind him.