Central Storage
Exit the shaft onto the ceiling and spot the guards engaged below. Cross to the other vent and keep going. Bust out the grating at the end and step onto the small ledge. Grab the hangrail above and traverse to the adjacent ledge. Drop down. For a pack of smokes, ascend the ladder. Go to the far left side of the fans to find pack of smokes #52. Return to the ledge.
Go through the next tunnel. Keep going through until you pop out of a hatch. A guard fights the critters in the next room. Blast him while his back is turned. Fend off any remaining critters. Snag the med cartridge.
There are two doors here and two paths. For maximum firepower and enjoyment, go through the door opposite the vent shaft. Youll enter a storage room with tons of crates. A couple guards battle creatures inside. Defeat the guards and creatures. Grab any discarded ammo or weaponry. Move toward the forklift. Leap up to the crate to the forklifts left. Turn toward the rooms center and run and grab hold of the crate on the forklift. Just jump to it and you will automatically grab hold. Pull up and leap to the next set of crates along the opposite wall. Go to the right and into the vent.
Navigate the vent and drop out onto the floor below. Fight off more beasts. Go through the door and into the tunnel on the left. Drop down the hole at the end. Descend the ladder to the very bottom. Follow the tunnel to another warehouse room containing a riot guard fighting off a gang of creatures. While the creatures distract the riot guard, maneuver up behind and shoot the riot guards back of the head with the shotgun. Keep circling around the riot guard and pelt its rear flank with shotgun shells. Your reward for the effort: the riot guards minigun! Finish off any remaining creatures in the room.
Exit via the door on the back corner (with the blue hue). Theres a health unit inside. Continue around the hall and into the next tunnel. Theres another riot guard! The minigun makes quick work of it. Switch miniguns for more ammo and keep moving. Enter the door at the tunnels end into the next area.
Loading Docks
The next room contains defensive turrets moving along the ceiling. Its not an easy area, particularly if you snagged the minigun from the previous level. Youll move slowly and its hard to take out the turrets quickly. Your best option is to scamper quickly to the left and avoid the turrets completely. You may suffer some damage but its worth not messing with the emplacements. Get around the crates on the left side for cover. Youll encounter creatures and guards--mow them all down.
Move into the door on the left toward the elevator. Slaughter the guard standing nearby. Hit the button and go into the elevator. Exit and follow the only path while mowing down guards and creatures. Reach a room with a health unit and another elevator switch. Ride the elevator.
Exit and approach the next door. More guards populate the docks. Crush them with your weaponry. Return up the lift and use the health unit if you need it. Walk through the fence to another elevator button. Press it.
Ride to the top. Theres a riot guard waiting for you. Shoot out all the lights to help provide cover so you can get a beat on the riot guard. If youre using the minigun, the riot guard requires little effort. If you dont have the minigun, use the darkness to sneak by the riot guard. Enter the door on the left in the back corner.
Two guards stand at the top of a short staircase. Toss a grenade if you have anymore or just demolish them with your weaponry. Go left at the top of the stairs. Theres a room on the right side with several guards. Annihilate them with a grenade or the minigun. Go inside and use the health station. Resume course down the hall to a brightly lit storage room.
Shoot the guards inside (including those on the catwalk above). Use the crates to reach the catwalk and recover pack of smokes #53. To get up there youll need to drop the minigun temporarily. Return down and go through the fence onto another elevator. Press the button. Once again, shoot out lights as you near the top.
Obliterate or sneak past the next riot guard at the top. Follow the hall around to the left and through a narrow corridor. Emerge into a guard station. Shoot the guards inside. If you have a cartridge you can use the health unit inside. Press the door button on the left inside the station (if youre facing out of the station). Exit and move toward the next section.