Continue through the now open door and up the stairs. Enter the first door on the right here for a collectible (1/3) in front of the desk at the back of the room. Head back out of the room and into the room at the end. After a quick briefing, another door down the bottom will open, head on into the corridor and follow it around and down some stars. At the bottom of the stairs, kick down the door to your left and find the control panel, use it to activate the security system on the other side of the window and destroy all the wretches. Return to the door and head straight down the hallway.
Enter the room on your right, from now until the end of the act, you, like the wretched you just annihilated will have to put up with the security systems. The beams that they project in front of them represent their line of site, so if you cross the beam they will start to fire on you. If they do so, get into cover as soon as you can otherwise you will die in a hurry. In this room here there are two security turrets activated, time it right and as they are both looking away from you, sprint forward and around the corner to the left.
You will reach a corridor that allows you room to go left or right. If you need grenades, move left, there is another security turret directly in front of you, and there is a doorway just in front of it to your left. Wait until the beam is close to the opposite wall and run into the room. Pick up the grenades and deactivate the turret using the switch. Continue down the hallway and take the first right into a small room, kick down the door here and pick up collectible (2/3). Return to the main hallway and keep moving.
As you round the corner to your left, a security turret will become activated in front of you. Immediately get into cover behind a metal box. As the beam moves away, sprint up to the second set of metal boxes that are closer to the turret. Take cover here and dive into the room on the right when you feel it’s safe. Deactivate the switch here and continue through the doors at the back of the room.
In the next larger room, we will be introduced to flame turrets, and a few wretches. Kill the wretches and take cover behind the lockers, make your way to the far right of the room and then make a move for the switch behind the flamers in front of you. Run and roll under the beams as they move back and forward and when you reach the end hit the switch to turn them off. Exit the room and turn right down the next corridor are three security turrets; you will see the switch to deactivate them right in front of the cover in front of you. Ignore it for now and run straight forward, kicking down the door in front of you and heading into the next area. Turn left and follow the room to the end. Exit when safe and run a short ways to the left to hit the switch.
Follow the hallway, past the deactivated security and kick down the door on the left. Venture out into the rain and kill all the wretches as they come for you. Run towards the door on the right of the area and it will blow open and another group of wretches will pour out. Once they are done for, head inside. Run past the alcove on the left with the turret and go into the kitchen. There are two turrets in here, wait until the beams of both turrets are as far apart as possible and then run down and do a u-turn around the central counter. As you do, watch out for wretches that will enter from the door ahead. Melee them as you continue forward, but do not stop until you find cover or the turret will snap you. Finish off the remaining wretches and look behind the door to the right to find the switch. Turn off the turrets and carry on down the next hallway.
Follow the hallway here until you reach an open door, enter the medical research area here and as soon as you enter, you should see the switch in front of you behind a wire fence. Run straight forward and round the corner to hit the switch. As you deactivate the security, a large group of wretches will come through the door to the left. Reactivate the security system and kill anything that escapes it. When they are all dead, return to the switch and turn it off for good. Enter the room behind the switch for collectible (3/3).
Make your way to the door that the wretches entered from and you will encounter another two ceiling mounted security turrets. When the left side of the room is clear of beams, run across to the far wall and follow it underneath the turrets to the door.
Continue straight ahead and leg it down the stairs and follow the hallway until you reach a number of horizontal flamethrower turrets. Some wretches will burst through the door behind them and come to attack you, dispatch any that survive the flamers and then using your roll move quickly past the beams. At the end of the corridor, Jack will open an Iron door, head through it and down the stairs to the right.
Now you will have to split up. There are two options:
| Option 1: Turret Controls | Continue up the stairs in front of you and hit the first security switch, wait for Dom to get past the first section and then hit the second switch, continue along to the final switch and then press the button in the next room at the same time as Dom to continue. |
| Option 2: Laser Bait | Move forward slowly, and wait for the beams to deactivate. Dom will count it down for you and as he says 'go' run to the next safe zone. You can identify the safe zones, by the jutting out squares of concrete lining the wall to your left. If you stand next to one of these blocks, nothing will detect you. Continue through to the safe areas between each of the security areas when instructed until you reach the end of the room. Press the button in the next room with Dom simultaneously to regroup. |
Continue into the research lab and follow the layout of the room round the stasis tanks in the middle and down the stairs to the left. As you walk through this area Marcus will contact command and after the conversation, the iron gate in front of you will open. Head through and up the stairs. In the room here, jack will plug into one of the computers. Use the lever in the middle of the room for a short cut-scene and the end to the chapter.
