Take the stairs up to your right and get the shield belt beneath the lift. Kill the Skaarj and ride the lift up. Turn right and enter the door kill the Skaarj Lord and enter the green pulsating chamber on your right.

Turn right and follow the ledge around in the same direction. You can't enter the door so follow the corridor around to the left, kill the Skaarj and carry on to open the door. Be ready for some heavy-duty combat, go back through the door you just entered and follow the corridor to the opening on the left.

There're freebies under the ramps and an assault vest above - you can't get through the laser beams, though, so leave. If you've killed all enemies in the area, the door that was locked before should now be open. Go through, head down the steep corridor follow the walkway to the end, ride the lift up, follow the corridor to your right and walk onto the crossbeams ahead.

Jump down onto the green force-field and approach the Security Access Panel ahead. Activate it and gain access to the Security Post. Enter the hall and carry on until you find the lift - ride it up, turn right and push the button at the end of the passageway.