You will have to take down the first guard unnoticed. To do so push the left stick (stealth mode will turn on), walk to the foe and push B. Keep going and Bourne will pull out a pistol. Use it to get rid of the next guard. Try to aim for the head as enemies die from one shot then. Follow the only way, and when they start shooting at you, just hide behind any object available (the A button). Heading further you will encounter some civilian worker. You can't kill him. You will have to knock him out. The adrenaline meter should be full, so it can't be too hard.
Mind the passport on the left. Head towards the door and pick the lock. There's one guard inside. When you deal with him, you'll hear a radio communication on soldier's walkie-talkie. Go outside and turn left. Walk around the shack to find another passport. Use Bourne Instinct to find your destination and get there. On your way there, you'll notice two workers. Use the sprint takedown (press B when running) to get rid of them. A helicopter will show up trying to kill you. In the rooms you can walk into, there are passports.
Run straight and eliminate another soldier. Then turn left and follow the only path available. You will find a passport on the left next to the wooden crates. The helicopter will show up again. Hide only behind metal objects as the bullets penetrate everything else. When it's possible run straight and jump onto a nearby ship and then onto the next platform. Run until you get behind a metal object. Aim for the red gas container and the helicopter will leave you for a while.
Head towards the gate. It's closed but you can jump onto a nearby ship. You will get into a building. Eliminate two guards on your way and get to the second floor and then into a store room. There, you will have to fight with Solomon for the first time. It's pretty much like a fight with the first "boss". When you deal with him, go outside and you'll see the helicopter again. Run straight and shoot another gas container. Follow the path and you'll notice Solomon beating the shit out of one of the guards. However, you can't fight him at this point. There's a passport to the right of a fence.
Follow the path and use the Bourne Instinct to locate enemies. You can deal with them in any way you want. Then go to the nearest building. Inside, flash-bang grenade will go off and you will have to fight with four opponents. There's a passport next to the exit on the right. Go straight, and then up the stairs. You will have to kill some guards here. Running down the stairs you'll find another passport on the left. Go across the room, up the stairs and through the gate.
You'll have to fight with some opponents here. After that you'll see a truck coming. What you have to do now is shoot down few of the soldiers, you'll learn how to use shooting takedown. Because of the heavy resistance, you'll have to take cover behind a building and then carry on with the shooting. After you deal with it, head towards the stairs. Go down and shoot the guard quickly. You'll find three more right behind the corner. Behind the door, two of them. Behind the shack, to the left from entrance is a passport.
Just follow Bourne Instinct. When you get to the fuel tanks, you'll notice a soldier with shotgun. Do him in and take his weapon. There's also ammunition in a nearby shack. What is more, there's also a computer that you need to examine. After you do what you are prompted, you have two minutes to get to a ship, so run there. When you're there you'll have to deal with some soldiers and Solomon. Use the same fight scheme as before.