You thought you had escaped, but you just stepped into a room. You wanted to flee, but the doors behind you wouldn't budge. A wall lays in front of you. It looks awfully weak, so you shoot it with your gun, it explodes, crashing you into the locked door. The effect from the exploding wall damaged you a little bit. Behind the wall was a door. There was a tiny slit through the door, and he saw everything. He saw all types of soldiers in this place. There's no where else to go but get out of here.