Part 28

Launch Control Room Shortcut: Jump-crouch to a small ledge to the right of the "BLAST DANGER" doors. Turn left, get onto a higher ledge, then jump-crouch onto the window. Hit the launch button through the window from the left side. (Note: Hints assume this shortcut is not used).

Navigating Laser Traps: Go through the "BLAST DANGER" doors and down a hallway to a room with stairs guarded by laser alerts and explosive packs. Push the shorter of the two large metal crates to the back of its side area. Jump-crouch onto it, move to its left edge, and jump-crouch onto the stairs' side rail. Move forward, turn right, and go through the door at the top.

Alternative Crate Strategy: Pull the smaller crate out of its side area. Pull the larger crate out enough to get behind it and push it to the back of the side area. Push the smaller crate against the larger one. Jump-crouch onto the smaller crate, then onto the larger crate, then onto the stairs.

Sneak Attack and Rocket Launch: Past the door, turn left and crouch-walk along the left wall. Sneak-shoot the two marines with the .357 Magnum. Check the first room for a first aid station. Go into the second room and use the big red button between the windows to launch the lambda satellite rocket.

Exiting the Area: After the rocket launches, the door reopens. Go back the way you came. When you reach the explosive stair trap, carefully crouch-drop off the top left side. Return to the big red doors and use the control panel nearest the closed doors to return to section c2a2g.

Section c2a2g (Supply Room): Turn left at the tracks to find a new area with a side ladder. Climb down to a room with supplies and a new rail track. Break wooden crates and check the tops of the two largest green crates. Get on the ugly old rail car but do not start it. Jump-crouch onto its front end and crouch-walk forward and right to drop onto the ledge to the right of the track. Follow this ledge to reach the "Apprehension" chapter.

Section c2a3 (Military Ambush): Continue along the right-hand ledge to an open area. Sneak-shoot the three marines with the pistol. Alternatively, let them see you, run back along the ledge, and shoot them from a distance as they appear. Grab their weapons.

Underwater Section 1: Go through the door in the marines' area and down the ladder. Near the broken point, strafe right to fall into the water without hitting the crate. Bash the crate for shotgun shells. Push open the underwater door and go through. Continue down the corridor and through another door. Run up the stairs on the left to breathe.

Underwater Section 2: Check the floor past the stairs for an assault rifle clip. Go through the doorway and along the unbroken walkway. In the next room, use the assault rifle to kill the zombie under and on the stairs. Check under the stairs for bullet clips. At the top, use the first aid station if needed and bash the crate for an armor battery.

Underwater Section 3: Past the next doorway, go along the walkway to the right and bash the crate for a bullet clip. Crouch-drop onto the large black-and-yellow-striped divider wall. Turn and drop onto a crate, then bash it for an assault rifle clip. Jump over the railing, dive down, and quickly go for the underwater doorway to the right. Swim through the passages, ignoring leeches, until you reach section c2a3a.

Section c2a3a (Ichthyosaur Tank): Swim along, passing a door on the right, until rubble partially blocks the passage. "Crouch-swim" through the rubble. Past the next bit of rubble, you can surface in a hallway to catch your breath.

Finding Supplies: Dive down and look for a floor grating. Bash it with the crowbar and swim down through it. Take a right at the path intersection. Look for a spot to swim up and bash another grating. In the room beyond, surface for air. Dive and look on the floor for AR grenades and crossbow ammo. Find the door with the large computer bank in front of it. Push against the computer bank's side to knock it over.