After a long, hard fought campaign, William "B.J." Blazkowicz has returned to face Deathshead.
Swim to the shore, diving underwater and picking up the Gold Trowel on the ocean floor. Climb up the ladder and start looting the area. Everything you could ever want is lying around, so make sure to do a thorough pass and get it all.
Go through the rubble and take your first right, shooting the Kampfhund who charges you. Move up the hall and to a door on the left, but don't go inside. Keep moving from one side of the opening to the other, shooting all the guards inside. When you've cleared most of them out, go into the room at the end of the hall. This will offer you a nice flank route to finish off any stragglers.
Tip: Heavily armored foes, except for giant robots, should drop with one Rocket Launcher round. Just be sure to conserve ammo in case of trouble ahead.
Move through the room and use your Rocket Launcher to take out the giant robot at the other end. He should go down in four or five shots, or you could opt to use your Laserkraftwerk as well. When there's absolutely nobody left to kill, pick up all the goodies and search the area.
Continue along, then down some round steps until you're in another hallway. You should see several bad guys lurking through the next door. We opted to throw a few Hand Grenades inside to kick things off, but you can go about it however you'd like.
Tip: There is an alternate route on the left wall before you go through the door. In order to access it, use your Laserkraftwerk to cut through the metal.
When the courtyard is clear, pick up one of the dropped weapons from the giant robots and press the button in the middle to open the door. Head through the door, then turn right to see several heavily armored bad guys in front of you. Shoot them using the massive gun you picked up from the giant robot, then keep going past the door to find a charge station in the next room. Keep that weapon charged and you'll cut through the opposition in no time.
Tip: You can be flanked here, so make sure to keep your head on a swivel and your gun charged at all times.
When everyone is dead, do a complete search of the area, then head down the stairs and take a right. Turn the lever to open the door, then sneak through it before it falls and crushes you.
Keep heading in the only direction you can, finally coming to a room with a ladder. Climb up the ladder to trigger a cutscene with Bubi, Engel's pet.
Wait for the option to take a chunk out of Bubi's neck, then pull the knife from your chest and score one of your most satisfying melee kills yet.
Go back up the ladder and continue along the only path you can until you reach an elevator. Take a ride to the bottom level where you'll find Anya and Set Roth. Get back on the elevator with them and escort your friends to safety.
Boss Fight: Defeat Wyatt and the Prototype Robot
Depending on your choice in the prologue, you may be faced with either Wyatt or Fergus. In our case, we saved Fergus, so now we have to end Wyatt's suffering.
As soon as you have control, turn and press the button to the right of the door. You'll get knocked to the outside, losing all your weapons in the process. Get up, then run to the opposite end of the courtyard to take cover behind the protective glass.
Tip: Use your knife to destroy the boxes laying around the area, then pick up Hand Grenades that will be used to defeat Wyatt.
Play a game of peek-a-boo with Wyatt around the protective glass, then toss a Hand Grenade at his feet when he gets close. The explosion will cause him to take a knee, at which point you must quickly run up to him and use the interaction button to End Wyatt's Suffering. It's as simple as that.
Final Boss: Defeat Deathshead
Take cover behind the protective glass, turning your back to it. Use your Laserkraftwerk to cut a hole in the fence, then go through and turn either left or right. Follow the path all the way along and up some stairs until you reach a turret. Hop in the turret, then look to the sky where you will see a blimp that is used to power Deathshead's shield. Shoot the blimp down and then disembark from the turret.
Sprint to the opposite side of the courtyard and climb up a second set of stairs, hopping in the second turret and taking down another blimp. From here on out, feel free to use Hand Grenades and the always trusty Laserkraftwerk to finish off the first part of the fight. You didn't think it was that easy, did you?
Drop down through the gaping hole in the floor to face off with Mecha Deathshead. There are no tricks to this one, just keep away from his firepower, avoid the flames and deal damage when you can. You'll find wall chargers for your Laserkraftwerk around the area, so try to keep it charged at all times.
As Deathshead shoots, more flames will erupt and the area will fill with smoke. Rather than aim down sight, fire from the hip. This turns your crosshairs red when you are on target, and makes finding Deathshead in the smoke much easier.
Shoot him with your Laserkraftwerk, throw Hand Grenades and keep moving. After awhile he will fall to the ground, ending the final boss fight. Move in on Deathshead to finish the job and beat the game.