You were running through a building, opening every door you saw, your weapon raised. Your team had just discovered an illegal laboratory, experimenting on humans. It was cruel and you run through the lab to find victims, ready to shot the evil guys. Just like now, the moment you open the next door, you freeze. A doctor was just sending shocks through a muscular man that was chained to a table. With a single shot, the doc dropped dead. The man was shaking in pain, looking at you scared.