GoldenEye 007 on Nintendo 64 - 00 Agent Mission 6: St. Petersburg - part iv: Depot

1. Destroy illegal arms cache
2. Destroy computer network
3. Obtain safe key
4. Recover helicopter blueprints
5. Locate Trevelyan's train

a. Destroy illegal arms cache

Turn right as soon as you can, then go open the gate on the left. Go straight ahead and pass through the gap that seems to be missing a gate, then turn left at the crossroads. Keep going straight and open the second hangar on the left. Take out the 3 guards inside and blow everything up. Personally I use the proximity mines found in the room. Once the crates have exploded and the objective is complete, search through the wreckage and the rest of the room for some ammo and the rocket launcher.

b. Destroy computer network

Leave the arms hangar heading left and open the door of the last hangar on the right, then take out the guards coming at you from inside and outside. You can take cover just past the hangar on the right, a good spot to see enemies coming. In this large hangar there's a rather annoying automatic gun turret. The most effective way to get rid of it is to strafe to your left as you enter the hangar (feel free to close the door first, that will slow the enemies down if you haven't killed them all). Press yourself against the back-left wall and quickly shoot the "drone gun" (the rocket launcher is the most effective, but don't miss). The advantage of this position is that if you get hit you won't be knocked back, so you won't need to re-aim. Once the automatic gun is destroyed, kill all the guards, then the big cube-shaped computers and the screen to complete the objective.

c. Obtain safe key

In the computer hangar, the key is right at the back of the hangar in the middle, just under the screen.

d. Recover helicopter blueprints

Leave the hangar heading left. Right at the end, just before the last hangar, turn left. Follow the fence / wall / train / warehouse on your right to reach the small house. At the top of the stairs is the safe you got the key for. Open it and take the blueprints.

e. Locate Trevelyan's train

Go through the door behind you and down the stairs. Open the door, then the train door, and get in quickly before you get shot at.