First, you'll have to deal with rather too many Skaarj for comfort. Bolt ahead to the Transformer Room and make a stand there. Once you've triumphed, push the button and grab the Med Kits. Leave, turn right and enter the door marked 2.

Push the button and go back to find the Research Lab. Enter, grab the Eightballs, head left and go up the ramp. Shoot the crates to continue. Carry on up the ramps and activate the control panel to open the doors below.

Jump down and enter the Science and Research lab. Jump down into the centre of the room. Activate the control panels from left to right, run up the ramp and hit the switch to open the Crew Birth doors. Exit the room and go to the Crew Birth section.

Jump to the landing below, grab the freebies and push open the gate to get to a lift. It'll take you above the research lab where you'll find Jump Boots, and Assult Vest and assorted other stuff. Use the Jump Boots to hop back across and down to the Crew Berth's, and take the first door on your left for supplies, then cross the hall and enter the next door for more freebies.

Leave and enter the door at the end of the hall, then take the left-hand lift up so you can jumpup to the crates and collect some Flak shells and Bullets. Ride up again to the Observation Lounge. Find the waterand dive in, and push the the yellow switch.

An underwater passage will open that leads to the bridge force field override. Once it's deactivated, kill the Skaarkj and return to the bridge. Take a lift up, kill some more Skaarj and push either button to move the Command Chairs to reveal a secret chamber.