After killing a few guttermen in the level of hell, Violence, you were in a place where the floor was checkered and blood as the water and a red skull. You needed the red skull so you walked to it but the cage like thing surrounding the skull trapped the skull. You were confused but you then heard loud thumping and a radio like voice so you turned around and saw the red machine with a rocket launcher as a hand known as the Guttertank and it looked like it wanted to kill you