World Record Time= 00:51-----My Time=1:06
Stop the cinema scene right before Joanna kicks the guard. Pause and select your Falcon 2 and put on the Night Vision. Immediately turn left while shooting the guy behind the table/desk. Strafe to the next door and open while shooting the guard behind the table/desk, then take a left, followed by a quick right (ignoring the 2 guards behind the blue barrier). While right-strafing shoot the guard behind the couch without stopping. Quickly take a left and without stopping kill the 2 guards behind the reception desk. Another left and kill that guard without stopping. Take a left, up the stairs shooting as much as possible at the 2 guards on the ground (the ones you ignored earlier) to kill them. Then get in the left elevator (should now be open). Once inside, immediately start shooting at the 2 guards near you through the side glass. Once they are dead, or you can't see them anymore, turn around and face the door. You should be at about 21-22 sec. right now. Take off your NVG's and wait a little. Before you get to the top, get close to the door (not up against it, but close) and face left at an angle. Get used to the floor you stop on (what it looks like from the elevator); as soon as you see the floor, while facing left (just barely left of the silver strip lining the wall) press "B" and you should hear a door open. NOTE: The game has a weird habbit of allowing players to open locked doors from the other side, so you are opening it through the wall. That is the door to the stairs that should have been locked. As soon as the elevator door opens, quickly head left and through the stairway door. Strafe really fast up the stairs all the way to the top. As you press "B" by the door at the top pause and select CMP150. Once it is open head right (strafing of course) all the way to the door to the other stairs. But make sure you kill the guard and the civilian on the right (by the door). Don't worry, you won't fail if you kill these 2 civilians. If you don't kill that civilian on the right, he will stand in the doorway for about 3 seconds blocking you. So kill him making sure to collect the guards CMP150. Go through the door and strafe all the way up to the top of the stairs and through the grated door. Lock onto all 4 guards and put on NVG's the second the lights go out. Immediately start killing the 4 guards on the bottom floor once they are locked onto, any way that is fast for you. I suggest the CMP150 on Follow Lock-On, because while Cassandra is talking, you can be locking on all 4 guards from left to right. Then once they are all locked onto just basically have to shoot, and they die. Once they are all dead, no matter how you do it, strafe up the ramp to the last guard while shooting at her. You should complete an objective after you kill the last one. Make sure to beat Cassandra through the door or she will slow you down bad. Once outside take off your NVG's and quickly strage right to the ramp, and go up all 3 ramps as fast as you can, to the helipad. Strafe to the middle and you are done.