Facility
Head down the air shaft to the bathrooms, where you'll see the head of a sergeant. There are three other soldiers in this room.
Kill them with your PP7, other soldiers will hear and swarm the
bathroom.
Leave the bathroom, but don't go downstairs. On that floor
open up the door and at the bottom of the stairs is one guy. Kill
him, and then open the door near to where he was standing.
Open it, take a few steps, turn left and you'll be behind a guard
with Keycard B, which will permit you into an important
security room. Across from the stairs is a security door, open it
and press B to activate the computer in front of you. There
should be three guards in there, and now you should switch to
your KF7. Make sure not to blow up the computer. This
keycard will open up a timed security door down the hall and
to the left. Be quick because there's yet a third door to run
through and it closes fast.
Leave that room, turn left, run down the hall, pick up the armor
to your left, keep running, take your first left, and open the
door on your left. Then turn right, and pass through that door
and stop. To your left in a locker room are two guards, it's not
necessary to kill them, but it's fun. Now open the next door,
behind which at least three soldiers are waiting with rifles in
hand. Open it, step back a few feet and wait for them to enter.
They line up so the killing is easy. Go in and check the left and
right rooms, where Dr. Doak, the double agent scientist, will
hand you a door decoder for later use. He may not be there
(he's got a light brown hair and a beard and he walks slow,
without putting his hands up) -- if he's not there, you'll see him
near the bottling facilities upstairs.
Leave those two bottling rooms and continue on through the
next door. In front of you is the room with the two security
switches, and hallways on either side. Pull out your PP7; pick
off the security guard to your left and right. Now, enter and go
toward the room in front of you. The room is filled with four
guards, so switch to your KF7, but don't throw a mine in there.
Go to the left and right and pick off the guards. Almost
guaranteed, you'll invite others. After dusting those stray
guards, and facing the door, hit the console on the right with the
flashing button, press B , and now run because the doors are
timed. Of course, you'll have to bust out through about five
guys, so reload your KF7 and then blow the guards away.
If you make it through the security door, go up the stairs, dust
the three to four guards and enter the bottling rooms, one by
one, to find Dr. Doak, if you haven't already found him. He
walks around, and may actually walk toward you if he's near.
Talk to him, wait until you get the decoder key, and then get
ready to run. Have your KF7 loaded and ready. Now run
down the only other hallway. Killing about three guys should
set you free for a few seconds.
Now, you can use the door decoder. You'll see two doors, the
one on the right is your door. In easy mode, you simply
approach it, but in medium and hard you must switch to the
key and wait. Once you're through it, switch to the mines. Go
down the stairs, approach 006 so that a conversation begins
and as soon as it starts lay one mine on each of the five giant
vats. Across the room from the staircase you descended, there
is a door -- it's your escape route. Now there are only two
things that need be done. One, make sure that 006 is about
5-10 feet away from the tanks (so that when you blow them up
he doesn't die). Two, blow up the ALL of the vats. As soon
they're toast, just walk out that door. If you stick around to see
what happens, guards will come by the bucketload hooting and
a'hollering and gas will flood the room. Make it out alive, and
your mission is accomplished.