Walkthrough: Switzerland

Once you arrive at the airport, talk to the chief of police and then proceed into the airport. Now for this mission you have to watch out not to shoot Civilians. Head through the double doors, to the right, and then through the hallway on the right. Go up the escalator and kill all the terrorists in the bathrooms to the left. There is a large health in the women's bathroom. Then go back out and proceed past the magazine racks and around the corner to the left. Proceed forwards through the next 2 hallways until you come to another escalator. Go up it and go forwards until there is another escalator leading down. The guy will tell you there's 2 guards down there. If you need health go on the other side of the magazine racks before going down the escalator. Go through the fence doorway and around to the right. Go down the long hallway, watch out for the shot-gunner coming out of the far room, and then head around to the right and down another long hallway. Go around to the left and then forwards past the check-in desks and up another escalator. This time there's a health kit in the men's room to the right, otherwise keep going forwards down this hallway to exit.

Kill the 2 guards at the top of the escalator and then go up and kill the other 3 guards. Go around to the right and through the corridor there. It loops back around to the left and then to the right again where there is a ton of guards and either a walkway or a escalator to reach the bottom. I recommend the walkway. There is a large health by the 6 baggage claim. If you don't need it, go through the hallway by the bottom of the ramp/walkway that you came down on. Work around through this hallway and up to the metal detectors. Go past the metal detectors, don't set them off, and then around to the right and up through the wall with tiles and a door on each side. Go through the doorway and around to the left in the next hallway. No go to the end and through the open doorway to exit the level.

Go through the hallway, kill the guards to the left and then go through the doorway and down the stairs. Now jump on the moving belt in the bottom of this room and duck to get into the next room. I find it's best to stand at the edge of the belt and then snipe the 4 guards in the room below, before jumping down. Go up the big stairway, to the door up there and pick the lock. Proceed through the hallway to the left and then up the ladder in the room with a lot of explodable barrels. Shoot the double barrels that will blow a hole in the floor. Jump down and kill the 2 guards that come in before picking the lock and crouching through the next hallway above the belt. Watch out for the ambush from below and then drop down through the hole in the grating. Work your way around to the left and through the open door at the end of the hallway. The big building right in front of you is the hanger (obj updated). Now kill the guards to the right and head that way. Go straight through the crates/containers, and remember to use the explosives to your advantage. Once you see another building and a fence in front of you, to the left is the hanger entrance, kill all the guards and enter the hanger. Sniping most of the guards in here works best. Now head to the LEFT engine on the plane and up the stairs that are placed there. Jump up onto the wing and then go to the main body of the plane. Look towards the tail and you will see a little platform back there. Do a running jump onto the platform and pick it to enter the plane… ending the level.

Go up the ladder in front of you and head forwards and to the left. If you need health/armor, go to the front of the plane, otherwise head up the stairs. Okay now break out your best friend, IE your auto shotgun, and have some fun in closed spaces. Head to the right and then through the door to the right. Now forwards and to the right, then head left towards the back of the plane. There is a red keycard on the table in the far back room. Now hit your USE key to pick up the keycard, and go back towards the front of the plane. Use the keycard on the red pad and head up the stairs to talk to Nachrade. Head to the cockpit and radio the shop. Throw the red switch to the right in the cockpit and go back down into the belly of the plane. From the stairs leading down, head 180 degrees and go to the front of the plane. There is a bunch of cables leading down (the armor/health is back there), go to the left side and go around and through the open door. Cut the wires on the big box in here and then go to the far back of the plane. Grab the parachute and then jump off the back of the plane to exit the level.