You are gonna start this one off in the bay you exited the last level in.
Explore the room a bit, look up and a guy will talk to you, telling you the
power cells are knocked out, and you are given a new objective: find 2 power
cells. Go up the stairs and to the door at your right, watch out for the Imp
that will pop out of the left side of the hall. In this room there will be a
zombie and two Z-Secs waiting for you. And continue to the next area, as soon as
you walk through the door, a vulgar will come out of the ceiling. Before he can
get into attack stance, blow him away. Continue forward and find an access
panel, which you need to download a PDA to access. The door to your right is
malfunctioning, so just go to the door straight ahead.
You will now come to a room, which there are broken stairs and a locker to your
right, and then enter the code ‘937’, and go forward through the red, gooey
tunnel. In this area you will be attacked by a group mixed with Imps, Vulgars
and Z-Secs, keep going down the pathway and up the stairs, to your left will be
another door which has denied access. So take a left. Straight through the
walkway will be an Imp waiting in the darkness for you, after he is dead, take a
right up some stairways. Download Ron Gibbon's PDA and turn around to kill the
zombie. Head back to the door you just had access denied to and go straight into
the office closest to the entrance of the room, take out the enemies inside, and
collect health and ammo pickups in the area, go back to the hall and up the
steps. Go into the room to your left and kill all the enemies inside, step back
out and back into the hallway. You will see two pillars with a door in between
them. Go to it.
In this room to your right you will see yet another door with denied access as
you are ambushed by 2 Z-Secs. Go to the next door. Above you will see
"Excavation Transfer" written above the doorway. This is a rather tall cavern
with many ways to fall down. Kill the Vulgar that has popped out, and you will
receive a new objective: "Locate a power cell to start the lift in Excavation
Transfer". Now you've got a shiny new PDA to get access to that door back there.
Retrace your steps to the door and into the newly accessed room. You will find a
number of zombies waiting inside, and at the right of the room will be a locker.
Look at your PDA for reference. Go back around to the left of the room and take
out the power cell in the generator. You will be ambushed by two Vulgars, kill
them, and continue back to the entrance of the room. Go back to the large cavern
where you got the PDA from, kill the enemies in the area, and insert the power
cell into the generator. Now go to your left where the lift is, and hop onto one
of the box-like platforms, be careful, and hop off on the second level. On the
platform, go through the door and continue down the hallway in it. In the room
it leads to, kill all the enemies in it, and collect the PDA in the upper-left
corner, turn around and go to the next room. Now In this room there is an arcade
game called Hellanoid. Which can be very fun if you have A.D.D. like I do... Oh
crap, I’m supposed to be writing the walkthrough. Anyway...
Head on into the next room, which will have 1 Z-Sec waiting for you in it. After
that, head into the next room. This is the same room you were in before, but on
the other side. Go to your left and down the stairs to the door that you should
have access to, if you don’t, read above for reference. In this room, straight
ahead of you is an access panel. Push the button! This will bring a bridge out
for you to get across. Walk across the bridge, kill the Vulgar that spawns, and
head on down the ladder to your right. Go ahead and take out the two power cells
inside the generator near you, turnaround and leave the area. This will of
course cause enemies to spawn. You will now find yourself in the room you were
in a while ago. Take a right, killing enemies along the way, go through the room
and straight through the second door inside the room. Kill the Imp and Vulgar
inside. In the next room you will find yourself inside the room you started in.
Put the two power cells into the generator, and go onto the lift near you, go up
the lift, and a ladder will lower for you, you are now probably gonna link up
with the guy who told you to get the power cells. But nope, he’s dead of course.
Go down the ladder and down through the floor to get into the next area. The
Door ahead of you will give you denied access, so head on into the elevator exit