
Keep going, killing mounted guns and soldiers all the way. At the next gate, take the ladder down and keep going down the train tracks. Shoot the track-switcher to continue straight ahead. Keep going, watching out for incoming rockets and big hanging boxes. Liberal use of grenades is recommended, and the switch near the big gun will open the gate so you can continue. Use your duck-jump to get over them (jump up, then hit crouch while you're in the air.) Use the switch you find to raise another gate, then get on the train car again and keep going.Īs you cononue you'll come to another great firefight with some hiding soldiers and a big artillery gun. Down a corridor you'll see a doorway to the left which is blocked by some boxes. When your train car stops again, hop off onto the platform, killing a few aliens along the way. Also, there are some soldier with mounted rocket launchers which can be foiled simply by ducking behind the controls of your train car. Climb down the ladder and find another train car.Īs you continue down the railway, watch out for red lasers in your path which will activate more sentry guns. Avoid it however you want, then turn right and go through the blast doors.

Go down the left hallway but be careful for a big artillery gun around the next turn. Eventually the tracks will end and you'll need to continue on foot.

Once you have this under control, continue down the railway, stopping to open a gate in you way. You'll take a trip up a spinning elevator with soldiers picking you off from all angles.
