Part i: Aztec

Creep out of the starting point to catch a glimpse of this guard on the left, but not enough for him to fully see you. Get him with a single shot to the head, reload, and retreat back prepared for a guard on either side. Alternate shots, left and right so neither one can shoot you. Aim high, so it'll take no more than two shots each.

The exit of the room is the obvious different colored wall. Open the stone door, then step back after you're seen. When the guard reaches the door, finish him off.

Continue through the hall, and there is a sniper behind a distant crate. You'll see his shots, but you can also shoot him when he ducks behind the crate, your AR33 bullets will go through the crate. Killing him will alert two guards at the end of the hallway. You know what to do.

To the right of the hallways end, you'll start to see a guard behind a crate. Shoot him in the arm so he'll grab it in pain, then move forward a bit to finish the job. To the left, behind a pillar is another sniper. Lean out and take him out. If he's crouching, you can still shoot him through the crates with the Assault Rifle.

Don't go down the trench, but instead head to the far end of that room, and open the door. You'll be in a black computer room. Step in to alert two guards, then step back out and to the side to get them when they come out.

Go back in the room, and make a hard right. To be behind a the white wall. There'll be a guard far across the room. Take him out before he shoots, then take out the other two guards who will appear. The far left wall is a panel that can be opened by a nearby computer. Just past it, are guards in these inlets. Easily killed.

The last guard in the inlet. Shoot extra times at him to alert guards in the next room. When they round the corner, finish them off before they can react. Head into the room, and destroy the left computer to make a doorway. Through there, are drones on either side. They don't face you until you hit them, so take them out soon after firing.

Turning right at that hallway, will lead you to this armor. Turn back, and head past both drones. You might run into guards in the hall.

You'll reach the hangar. Crouch, and stay behind these first two crates. Creep forward to see the drone, and shoot it when you can make out the barrel of it. Now stand up, and back up a bit, looking over the crates. Two more drones will be visible, but won't shoot. Take out the far one first.

Next, crouch and move right to get this guy below the distant drone gun. Creep to the left of the Crates to kill any more guards that are visible. Turn right around, towards the shuttle, and go up the ladder.

After the ladder, on the platform, activate the computer to close the exhaust bay (so you can get through there later). Go through the grate opposite the one you entered the hangar from.

Kill any guards you come across, always following the back left wall, until it comes to an end at this room. Duck, look right, and take out this guard in the corner, which will make the giant Jaws run towards you.

Back up, and around the corner, and duck facing where you just came from. Jaws will come around the corner. Get right up against him, and how won't be able to hit you. Keep shooting at his feet, or press bottom C to aim up at his head. His armor will wear off, and he'll start taking damage.

After you kill him, collect his smart card, and return to the hangar, and back to the hallway where the first drones were. Return to the computer room, and you can now open the bulletproof glass.

On the right, collect the DAT. Go to the left, and select Guidance Data (computer disk), from your inventory, and activate it into the computer. Return to the hangar, and you will meet guards with double Lasers on your way. Take them out before they shoot. You can now have two lasers.

Back in the hangar, turning hard right after entering it. Go around the corner, and select the DAT, and plug it into the mainframe.

Head back to the ladder, where you're sure to find guards. Take them out, and head up the ladder to activate the computer. Turn around to be sure no guards will get you from behind. When the timer runs out, the shuttle will launch. Mission Complete.