Level by Paal Olstad.

This level takes place in the basement and dungeons of the house.

You start here. Wait for the sub mutant to open the door for you. Kill him with your knife and enter the next room.

Take the door to the west. Have the first Super SS kill himself by blowing up the barrels and take his plasma gun. Kill the next Super SS, if necessary by blowing up the third barrel.

Open this door but beware the bomb right past it. Shoot with your plasma gun at the opposite wall to blow up the barrels and kill the Super Officers. Some of them may come at you. Retrace your steps and enter the corridor by the other door and take their missile launchers/missiles, but look out for the poison puddles.

Continue.