This next section of the game will see you diving below the water to find a grate to proceed to a new area. Dive under the water and swim to the area where Parker used the Restart Key. You will find a pipe there, which you should pick up. Swim to the middle of the area, where you will find the objective marker on your map. Move up towards the top of the area to find the grate that you have to open. If your screen starts to darken along the way, surface as you are about to run out of air. Otherwise, use the pipe to open the grate and swim through. Try not to drop the pipe while opening the door because you will have to dive all the way back to the bottom to retrieve it if you do. Proceed through the grate and leave the water.
Scan the floor once you surface to reveal a pack of Rifle ammo, then move forward to find Machine Gun ammo and a Shotgun Ammo Case, which will increase your ammo capacity. Now drop down into the water and prepare to dive again. Go straight until you reach the door. Go through the door and climb the stairs. The path from here is relatively linear, so follow it to your objective. Several enemies will spawn along the way, so tread carefully to avoid damage, as another boss battle will be coming up fairly soon.
When you reach the door, walk through and walk through the water. At the end of the path you will find a ladder guarded by two enemies. Kill or dodge past the enemies and climb up the ladder. Walk through the door at the top and proceed into the lift on the other side. Ride the lift up to the next floor and go to the left when you get off. Jump down here and proceed to the other area, being careful for the B.O.W fish enemies that you may find here. Climb the ladder on the other side of the room and then climb a second ladder. Scan the lamp to find Custom Parts before leaving the room.
You will now be running through the Casino. Head to the escalators to get out and run through the doors at the top. Go to the left side of the room. You will see that the elevator is working fine now. Examine it to trigger a B.O.W attack. Draw your gun and attack it. This is a very strong enemy type, but the creature will leave once you have dealt it enough damage. Head up to the observation deck, where you will find numerous boxes of ammo and Herbs. You know what that means – it’s time for a boss battle.
Boss Battle: Armored B.O.W
As you grab the goodies strewn about the observation deck, the enemy you just fended off at the elevators will emerge and attack you again. This time, you will have to kill it for good. Like with the Communications Officer boss, you should try to use the conveniently placed gas canisters to deal some significant damage to this boss before resorting to attacking through other means.
Watch out for this boss telegraphing its attacks. Unlike the last bosses you’ve faced, this one has a charge attack that can deal heavy damage. When the enemy puts its arm down, that means that it’s about to charge. It will also raise its limbs up and bash the ground, which will knock you down. There isn’t a whole lot you can do to avoid this attack as long as you fall into the enemy’s attack radius. Dodge what attacks you can and use the gas canisters until you can’t anymore. Then you should use your most powerful guns to target the unarmored sections of the beast. This will be a difficult battle, but with a bit of patience and good timing you should be able to avoid many of the boss’ attacks and deliver the finishing blows.
After the battle is over, be sure to pick up the Veltro Key Card nearby. You can also scan the boxes on your right to find some Handgun ammo, and the ladder to get some Rifle ammo. Read the associated file with the Veltro Key Card and leave through the door. You’ll find some ammo stashed to your left. Pick it up and move right to go up the stairs, grabbing the Green Herb nearby before going up. At the top of the stairs you will find another ladder. Climb it to be faced with a computer console. Before examining it, take out your scanner and scan it to find another of the hidden handprints. Now examine the computer console to initiate another of the wire-based hacking puzzles.
The solution to this puzzle is simple; just rearrange the nodes into a perfect square, making sure that none of the wires are crossing each other.
When you finish hacking the console, a cutscene will trigger and this episode will come to a close.