OBJECTIVE: Continue the search of Paxton Fettel
Go right, to the reception desk. Take the Body Armor from the table. Keep going forward and once you're at the fork, turn right and take the Medkit from the metal shelf.
The corridor leads to a room where you'll see two soldiers, both carry RPL Sub-Machineguns. Lean out and shoot the first at the head from the rifle. Exchange the weapon into a shotgun and wait in the corridor for the other soldier to come. Enter the room in front of the entrance and take the VK-12 Combat Shotgun.
Visit the adjacent room, there's a telephone there - listen to the voice mails and then search the larger hall. On the right you'll find a Medkit, a Body Armor, a 10mm HV Penetrator, and on the left - a VK-12 Combat Shotgun. The short corridor will lead you further.
On the left you'll see an AT-14 Pistol and an N6A3 Fragmentation Grenade. Go right, crouch and lurk behind a small wall. Switch to Slo-Mo, lean out and take two soldiers down (they're armed with a G2A2 Assault Rifle and an RPL Sub-Machinegun.
On the left you'll find a Medkit on the metal shelf. Deeper in the room there's an RPL Sub-Machinegun on the table. Keep walking down the corridor and turn right.
There will be two rooms on the left. In the first one you'll find a telephone - listen to the voice mails and enter the second room. You'll find a VK-12 Combat Shotgun there.
In the next room with pillars, and further - in the room with a glass wall - there are four soldiers. They carry G2A2 Assault Rifles and VK-12 Combat Shotguns. Keep leaning out repeatedly and take your enemies down one at a time. Inside the room you'll find two more G2A2 Assault Rifles and two Body Armors. On the table there is an M77 Remote Bomb, an N6A3 Fragmentation Grenade, and an RPL Sub-Machinegun.
Open the door - there's a prisoner inside. Take the Medkit and talk to him, next give him the radio. In a moment you'll receive a new objective. Exit the room and the hall by the corridor which is in front of the door.
OBJECTIVE: Meet the sappers by the elevators
Go through the corridor and visit the room on the right. Take the Medkit from the rack and keep going further. The corridor will fork - you can either go left or right. Choose the first path and walk until you reach a desk with a Medkit. Take it, go back to the fork, and choose the way on the right.
You'll find another Medkit in the room on the left. Go to the very same hall. If you had gone near the elevators earlier - the action would begin. So now it's the right time to approach the elevators, which are in front of the both entrances. The elevator in the middle will open first - switch to Slo-Mo, kill the soldier and turn Slo-Mo off. Next, move to the left, and once more - as soon as the elevator is open - turn Slo-Mo on, kill your adversaries and again quickly turn Slo-Mo off. Repeat these actions also when the elevator on the right is open.
Afterwards, quickly run away as fast as you can to the place opposite the elevator on the left, hide there, crouch and wait. Kill two soldiers, one at a time (a VK-12 Combat Shotgun and a G2A2 Assault Rifle). It's not going to be that easy to defeat the third enemy - the heavy armored soldier. Keep shooting at him from the distance all the time, and then quickly exchange the weapon into a shotgun and switch to Slo-Mo. Keep drawing nearer and shooting at his head all the time. You'll kill him eventually (he was armed with a 10mm HV Penetrator). Another elevator has taken a sapper and a soldier up. Wait until the sapper blows up the wall and follow your allies to get to the prisoner.
OBJECTIVE: Escort the explosives expert
You don't have to worry - you won't encounter any enemies on the way. When you get to the prisoner, you'll be given a new objective. Approach the second soldier, then go right, to the pathway which has just been opened.
OBJECTIVE: Investigate the cause of the fire alarm
You'll get to the staircase. There's a Medkit on the desk, take it and then go upstairs. You'll find yourself in a tall hall with some rooms on the right. In the first room there's a Medkit and in the second - a telephone. After you've finished listening to the voice mails, go further and past the last room as there's nothing worth exploring inside.
After a short stroll, you'll get to a room where you'll see an orange light flashing. Draw nearer, sticking to the wall on the left, open the door and enter the room. On the left there's a telephone so check the voice mails, then take the Medkit and press the button. You'll get a new objective.
OBJECTIVE: Join Holiday and Bishop at the roof
Take the elevator and push the button. As soon as the door opens, get off and take the Medkit. Then look to the right.
Jump on the barrel and the wooden shelves to get upstairs. You must get on the ceiling and go along the wall till you reach the metal plate. Break it down and keep going further in the ventilation shaft. Destroy another plate on the left and jump down.
Take the Medkit hanging on the wall on the right and open the door. Gather the data from the laptop and go right, to the very end.
You need to get out through the window on the right to get at the cornice. Save the game and continue going further on the cornice till you you're able to get inside another room. There's a Medkit there - take it.
Keep walking. As soon as you notice two soldiers from the distance (on the right) - aim, turn Slo-Mo on and try to kill both at once. Both carry G2A2 Assault Rifles. On the right there's a Medkit lying on a shelf.
There are two entrances to the hall - take the one on the right. There are another three soldiers here, armed with the same stuff as the previous ones. Kill them using Slo-Mo and a rifle, and then go left. There's some equipment in here - a G2A2 Assault Rifle, two N6A3 Fragmentation Grenades, an AT-14 Pistol and a Body Armor.
On the other side of the room there's also some equipment - a 10mm HV Penetrator and a Body Armor. Again, there are two exits to the second hall. Take the right and take two Medkits on the way.
Three soldiers will be waiting in the distance. Kill them all from the distance, take their weapons, go straight on and then right. Get to the very end and take two G2A2 Assault Rifles, two N6A3 Fragmentation Grenades and a Body Armor.
Next, carefully jump through the break in the rails on the scaffolds to get down. Lean out and kill the soldier who's in the larger hall.
Then, step back and wait for the other soldiers to come. Step forward and finish all of the rest off - there are four soldiers, all have G2A2 Assault Rifles. In the room where you've seen them there's a Body Armor, and next to it you'll find two G2A2 Assault Rifles. Go right.
In the other hall there are five adversaries together (armed with G2A2 Assault Rifles and VK-12 Combat Shotguns). Lean out repeatedly and kill them one at a time from the distance. You might also just wait for some of them to come closer - the shotgun would be perfect here. Pick up the weapons and turn left. In the corner there'll be a box with some equipment (a VK-12 Combat Shotgun, two G2A2 Assault Rifles and a Body Armor). Next, go left to the stairs.
Follow the only available path, open the door on the left and take the Medkit, two AT-5 Proximity Mines and (if you use them) two RPL Sub-Machineguns. Keep going further till you get to the upper part of the hall, where you've been before. Go round the rails and pick up the Reflex Booster.
Now - return to the big hall where you've recently fought. Approach the entrance depicted in the picture on the left above. It'll lead you to a staircase. You must keep going up, first up the stairs and then up the planks...
... and up everything you can jump on. You'll get to the place, which you can see in the picture on the right above. Jump on the small box to get behind the wooden wall. You'll get to the next stage.