This is a fairly easy cheat to get, it only takes a couple of tries to get. The issue here is time, you have very little of it, so you have to be very speedy to obtain this cheat. The cheat itself is not that cool, but hey, at least its another option cheat on your cheat menu.
Bond starts out in a jail cell (I don't remember this in the movie). Immediately press start, go to your inventory list and pull out your watch magnet attract. Aim it at the edge of the wall and floor outside of your jail cell and your should pick up a key, use it to open the door. Duck down, strafe to the jailor and slap him to death. Pick up his gun and second key and unlock Natalya's cell, then switch to the KF7. Open the door shooting randomly all over the place while running straight forward towards the locked double doors. On your left is another set of double doors, go in and shoot a person or two. Apparently this room is programmed so that if any shot is fired in it, hordes of enemy start pouring in. Now exit the room, the locked double doors have probably been opened by a guard. Go through the doors and take the next left to another hallway shooting anyone who gets in the way and picking up ammo. Then turn left up the stairs and follow the hall, on your left are a set of double doors, go in and kill the guy inside, then take the CCTV tape (objective a completed). Exit and continue down the hall, turning right at the split, go down the stairs and you're now in the control room. Strafe to the alcove opposite from you and shoot the computer console through the glass. Now it is chaos, guards are shooting you from every direction, so shoot anything that moves (except for Natalya of course). Now Natalya should run to the console you just blew up and say that they have to escape, a timer will appear at the bottom of the screen. Go to the glass security door and wait for Natalya to open it for you, as soon as she does, strafe down the hall, up the stairs, and out the door (objective b complete). Don't forget to press start before the animation shows to save two seconds.
2x Throwing Knives
This is a pretty crummy cheat that get boring quickly. At first the idea of having throwing knives is pretty cool, then you realize that throwing knives are slow and inaccurate, and that you are a very easy target for enemies while trying to aim the knives at them. This cheat really sucks if you don't have the infinite ammo cheat because you are given only 22 throwing knives and you lose them too quickly. There are some pros to this cheat, too, they are extremely silent, they is quite powerful, and they look cool when you are holding them.