In Istanbul's Surveillance mission, follow Jericho. The less the proximity meter is, the closer you are to Jericho's car. The more full it is, the farther you are. After following him, you will be told to find another way into the meeting. Around back is a set of stairs that leads down to a door. Walk in and there should be a man facing the other direction in front of you. Pull out you silenced gun (with the long barrel) and shoot him in the head. It has to be a one shot kill or you will fail the mission. This may be difficult to do if auto-aim is on. Go up the stairs on your left. On the next flight of stairs, there will be a man at the top. Shoot him with a one shot kill. Then, go up the next flight of stairs and turn around. There will be a man standing by a balcony. Shoot him in the head quickly, because he moves from that location if you wait too long. Go up the stairs on the right. Go down the hallway. There will be an open room to your left. Inside is another man. Shoot him with one shot. Then, go down the riser in the middle of the broken floor and to the arrow. After the intermission sequence of the meeting you have to fight your way out. There will be a man in front of your right of the bat. Go out the door and there will be men on the uprise across from where you are located. They will be shooting at you, but it is a waste of time to shoot back. Run to your right and go up the stairs. A man with a shotgun will be at the top of the first flight of stairs. Shoot him and keep going. There will be a man at the doorway to the penthouse waiting for you. Before walking outside, to your right is health if needed. There are about four men with Ak-47s on the roof. After shooting them, go behind where you just came out of (the penthouse) on the roof and get some health if desired. Then, go across the
roof and to the stairs. A man will come up the stairs. After shooting him, stay on the roof and shoot everyone on the lower level before you go down. There are two men that you can see. Then, go down the steps and move across this roof. Three men will be hiding behind the tanks and will come out at you. After shooting them and moving on, three more men will come up the stairs on the other side after you. Beware of the man crouched down behind the metal box. Before going down the next set of stairs, shoot the two men in the construction building across from you. Then go down the stairs and collect the health to the left. Next, go in the construction building and down the ramp on the right. As soon as you get down there, there will be four men waiting. After shooting them, another man will come out at you. After killing him, go into the next area on that level (the area in the sun). Another man will be there. After shooting him, go down the ramp on the right. When you use that ramp, you should see health directly ahead. Do not get it just yet -- it is a trap. First, shoot the men in the next area of that level then shoot the men down on the sidewalk across the street from the health. Then, go on the balcony and get the health. If you need more health, go in the next area. It is in the back left corner. Along the wall in the next area is a rectangular hole. Jump down it. There are no men down here. Walk down the ramp and an intermission sequence will start. There are about six men shooting at you from behind there cars. Shoot the ones that run from the car and towards you first, then just blow up one of the cars to kill the others. The Uzi works the best. Then, get in the black truck that is there. Beware of the "red" drivers on your radar. Drive to your hotel.