Level 3 - CORRIDOR

This is my second most hated one.I'll not post any picures for the first part as it is the basic level.Run to the end of the hallway only killing ONE of the red dudes. I would suggest throwing your gun at the other so he stops shooting for a bit. Once at the end of the room, jump out the window to the left. Once there, jump to the right and go THROUGH (yes, that's right, I said "through") the walls and floors of the building on the right.DO NOT just run straight ahead as the floors are not solid at times, I would reccomend picking up a gun from the corridor and firing bullets into the floor at 2m intervals. It should leave a small blue impact if it is solid. Just do that and jump to the terminal and boom, there you go.Editors note: This took about 10 minutes to find, then a further 10 minutes to reach. Like I said, one of my most hated...