I'm on the level where you have to bug the phone and the computer, it is..

Beginning of mission:

You go down the stairs to the doors,follow the hallway and then you should come to some glass doors, then go straight, then take a right, make sure when you pass the glass doors that you crouch.

When you are at the guard watching the TV, pass the wall a bit, then turn left to go up the stairs, then go to the second set of stairs then go straight to the room straight ahead, that's where your first objective is.

When you bug the telephone, go to the door to the right of the phone,there is a door,then press back on your controller to bring up the map, there should be a red dot close to where you are when he goes around and he is infront of the door.

Wait till he is walking away from the door, when he goes down the hall, open the door, then go straight then go right beside the glass.

Crouch and go to the wall to the right where the stairs are,a guard should be there, then look at him then run very fast to the room where you were (the telephone) then he will leave to meet up with the other guard, when he leaves.

Be ready to leave and queitly walk up the stais crouched, when you get up the stairs, there should be a guard going down the hall, wait untill he turns the corner,then follow him past the hallway then stay by the corner, then he should leave the room to go to a hallway to the right.

Go straight to the room where he came from, then go to that room and take a right to the little office. When you bug the computer,a guard will come and make sure you kill him,and there is a guard behind the door. Then you are done that part.

Then when your boss tells you to get the accountent, kill everyone that is in your way,then go downstairs (the ones that you went up) then go shoot the guard watching the stairs, then go to the left, then down the hallway to the Office where you will see a guard, then shoot him, then the accountent is on the computer, go to him and then.

Then you have to make your way out of the building,so remember the place where you start off on this level,thats where you have to go,then go outside and make sure your accountent is not dead or mission over.