Part 26

Detonate a tripmine near the rocket emplacement operator to kill him.

Move along the ledge to his area to find a health pack and his dropped gun.

If the tripmine doesn't kill the marine, crouch-walk along the ledge until he fires rockets, then shoot his leg until he dies.

Follow the ledge until you reach the area where a rail car was stopped by a barrier arm.

Use the .357 Magnum and slowly crouch-walk along the left ledge to shoot a vortigaunt across the tracks.

Sneak carefully around a pillar and shoot two more vortigaunts across the tracks.

A nearby vortigaunt is to the right of the last two, but not your next target.

Slowly crouch-strafe left, watching the hallway leading from the main vort area, until a vortigaunt comes after you. Kill it.

Crouch-strafe left again until a second vortigaunt from the hall comes after you.

You should now be able to see and shoot the final vortigaunt in a corner to the right.

Jump across the track and find a first aid station to your left.

Go down the hall and shoot one of the tripmines past the green crates blocking stairs with your pistol.

Jump-crouch onto the single crate and walk across it.

Two headcrabs are in a ceiling area just past the crates, but you likely don't need to worry about them. Toss a hand grenade up there if you want to be sure. (Quicksave first in case the grenade bounces back.)

Crouch-walk up the stairs, bash the two crates to get a C4 satchel bomb.

Get out the .357 Magnum and crouch-walk to the corner past those crates.

Sneak-shoot the two marines ahead, but be ready to finish them quickly as they will charge.

After they are down, check their room for an HEV station and a large switch to raise the barrier arm.

Hop onto the railing and carefully crouch-drop to the floor below.

Jump over two tracks and go left to find a new rail car. (If you return for your old one, a marine will have taken control of this one.)

Ride this car until you encounter another lowered barrier arm. You can abandon the car here or continue.

To keep the car, get off by moving onto the left ledge and move back until you can see three wooden crates stacked on the upper walkway.

Use the pistol to shoot the bottom two crates, destroying the top one automatically.

Use the .357 Magnum to blast the three marines that start running on the upper walkway. Shoot them when they are briefly standing still.

Jump across the tracks before they split and move around the corner to the right side of the area.

Quickly crouch as you run toward the base of the upper floor where the heavy gun emplacement is.

Quicksave if you made it uninjured. Get out your hand grenades.

Move back so the gun fires but doesn't hit you, then toss a grenade over the sandbag wall to land behind it, killing the marine at the gun.

Jump across the tracks to climb a short ladder to the upper walkway.

Look for a first aid station and dropped guns on the walkway.

Go to the gun emplacement and use the wall switch next to it.

Return to the rail car and ride until the next rail car elevator.

Stop the car short of the elevator and check the side area for C4 satchel bombs in crates and one underneath the personnel elevator.

Send the personnel elevator up, drop down to get the satchel, and climb out using the ladder. You can then recall the elevator.

Get into the elevator and ride it up to find yourself next to a large stack of explosive crates.

Get out your C4 satchels and toss one through the gap between crates. (Move up to the gap and jump right before tossing.)

Ride the elevator back down, detonate the satchel, then ride the elevator back up.

Pick up the satchel near the elevator and look for a dropped weapon next to two crates you can bash for supplies.

Slowly crouch-walk along the rim of the rail car elevator shaft to reach a small red-lit room with two AR grenades.

Look down and across the shaft to see marine legs to shoot (use the pistol to save .357 ammo).

Crouch-walk back across the shaft rim, then find the long ladder near the elevator.

Climb down to the bottom to claim the dropped weapon of the marine you leg-shot.

Climb to the top of the ladder to find boxes you can bash for ammo.

Climb down the ladder to the floor with the elevator, then strafe off the ladder to land on the floor.

Take the elevator down, get on the rail car, and ride it up.