This is the hardest level you will have played so far. I can almost guarantee you won't beat this level the first. And if you do, congratulations, you've achieved a feat even I didn't. You start in an elevator. Open up the door. Move carefully until an automated gun starts firing. It won't be able to hit, you you should blow it up with ease. Move out into the first room, and kill the guy. Two or three more guys should come. Kill them, then press up against the right wall. Another gun will begin firing at you, but it won't hit. Dispose of that gun, then walk over the left wall. Walk near the corner, and aim up. You'll see an another automated gun. Blow it up, then lean out into the next section. Fire a few shots, then step back. Two guys should come. Kill them, then kill the guy coming out on your left. Go back and get Natalya. She go the computer console and begin typing. She open a blast in the section where you killed the two guys. Go through the door, and kill the first two guys at the end of the hallway. Lean out, and fire a few shots the the guys behind the crates. Be careful, they are grenade happy. After you've killed them, go down to where you killed the two guys, and pick up some remote mines. Go through a little cavern, and kill the 4 guys there. Head up the steps, and open the blue door. Kill the 4 guys in there, then open the next door. You'll see Boris in there. He'll pull a gun on you, and then drop if foolishly. Don't kill him. Just turn you're back on him, and he'll run away. Place a remote mine on each of the mainframes near Boris's computer. Blow them up, but be careful not to break any of the glass. Go up to the next level, and place remote mines on the two mainframes in the corners. Blow them up, then head up to the third level. Go through the grate, and pick up some body armor. Head back down to the first level. Open up the blue door, fire a few shots, then lean against the side. Wait until four guys come through. Then, stand back, and blow up the two automated guns. Be careful going in, there are automated guns of both sides of you. Blow up those guns, then head back. You'll see a mainframe. Plant a remote mine on it, and blow it up. Exit, but place a remote mine on the locker blast door, and the locked elevator like door. Don't detonate them, yet. Go back to the second level. Head down into the room with the 6 computer desks. Destroy each desk, except the one in the middle, in front of the projection screen. Now, go up the blue winding stairs, and open the blast door. Natalya should say "I'm coming James!". Now for the tricky part. Stand in front of the projection screen and let Natalya type. When the alarm goes off, detonate the two mines. Now, tons of men will come. Kill them as they come down the stairs. If a guy comes down the stairs, but continues running, he's going for Natalya. Kill those guys first. Listen for glass breaking. When you hear, turn to your right or left. Eventually, Natalya will disable the Goldeneye. When she does, run towards the locked blast door you put a mine on. It will now be open. Throw a mine on the glass panel (behind that panels is a mainframe). That does it for the mainframes. Head to the elevator-like door, and open it. Kill all the guys inside, then head towards the lockers. Pick up body armor, and wait until it says "Objectice A completed". Then, open the next door. Kill any remaining guards, then go in the elevator on your left. Whoosh, that was tough....