
Cheats:
Hidden trailer:
Wait about one minute at the main menu to view a longer, uncut
television trailer for the game.
Hint: Persuade a person:
When someone's trust is in the orange and they will not do anything
for you, enter first person mode and aim the gun at their head for three
seconds. They will now do things for you without good trust.
Hint: Get a doctor to follow you into a fight with
the Thing:
Use the following trick to get a doctor in the same room with you
during your battle with the second giant Thing. Walk to the large garage door.
Get the doctor close to the door as well. Then, tell him to not follow you
anymore. Push him as close to the door as possible; and close enough to you that
when you flip the switch to open the door he will not move. Before you flip the
switch, tell him to follow you again. Flip the switch and when you are shown in
the locked room with the second giant Thing, he should be beside you. Use him to
heal you during the fight with the Thing.
Hint: Get Whitley to follow you:
The following trick requires Stun Grenades (found in the back of the
room with Boss 3), Blood Test Kit (found in the same room), and the Grenade
Launcher (in the save room down the hall from Boss 3). Starting after third Boss
fight (hanging tentacle monster), backtrack your way out of the weapons lab,
back up the air vent, and to the "mine" elevator. As soon as you reach
the surface, strafe left, and equip both the Grenade Launcher and Stun Grenades.
If you step forward at all, it triggers an intermission sequence you have to die
and start the level over. Enter first person mode and aim up the corridor,
parallel with the bottom of the last metal wall panel. Launch a grenade and
quickly walk forward. The intermission sequence will trigger, but Whitley will
stand still instead of running off. Now, quickly run ahead of him (preferably
block his path to slow him down) and use the Blood Test Kit. He now trusts you
enough to follow orders. Order him to follow you (otherwise he walks around the
corner triggering guards to attack) and give him a weapon. You have now backup.
He only lasts a brief amount of time, and will disappear roughly halfway up the
snow corridor, which appears scripted. However, every bit of backup firepower
helps in that spot.
Hint: Skip first Boss battle:
When you encounter the first Thing Boss, hold Up/Left to run
diagonally and you should run under it before it can hit you. This will also aim
you directly at the junction box. Immediately start fixing it. As soon as it is
almost fixed, hold Right to run through the door. Since he will still
keep fixing it as long as you do not release the button, with luck it will be
fixed before the Boss attacks for the third time. At the intermission sequence
you tend to take off in a random direction, so this may take a few attempts --
save immediately before trying this. If successfully completed, you will lose
only about half a bar of health and no ammunition, making the next area much
easier.
Hint: Defeating the second big Thing:
Go into to his garage. Fix the electrical panel that operates the
hoist. Step back towards the middle of the big door. There is an opening between
two of the crates. Using your grenade launcher in first person targeting, send
in a grenade. If the Thing turns its head toward you, then you have him
targeted. Continue sending in grenades until he begins to burn. You can send in
a few more if desired for extra fun. Run into the Thing's room and on the far
wall from the big door is a switch. Throw the switch and watch as the Thing
dies. You will probably take one hit from him.
Hint: Defeating the third Boss:
Run around the Boss in a circle while shooting it with the machine
gun. When it is low on health, use the flame thrower to finish it off. If done
correctly, you can kill it without being hit. After you kill the Boss, the Thing
in the glass in the room will break out, and the door will be opened with a few
guards.
Hint: Road tunnel:
In the level where you first enter the road tunnel, go right to the
truck. Blow up the barrel to kill all the little things. You can now either have
an engineer fix the lights or not. Follow the left wall back to the door you
came in and stop near it. There is a Walker locked up in some boxes. Throw a
grenade to blow up the box and let the Walker out. Run back to the truck, or
better yet, stand there and watch (if the lights are on). The guards not only
get slaughtered, but really wear the Walker down. After he kills the guards, get
him to walk around to you (not leaving the general area) then blow up the
barrel. If you done correctly, you will kill the walker with ease. Otherwise,
torch him.
Hint: Shutting doors:
Always shut the door of the room you walk into, if you have the
chance. For example, on the level where you have to kill all the walkers, a
walker will enter from the front door if you do not shut it.
Hint: Keeping your team together:
Listen to your team. They will tell you how they feel. If you hear
someone say something similar to "We're gonna die", check the team
menu and see how he is doing. If there is an X across his face while he is
shaking uncontrollably, bring out the Tazer and shock him. Wait for him to calm
down, move out of the area, and give him back his gun. He might be bitter, but
after you kill a few more things he will be fine. Otherwise, he might start
shooting you and your team, ending with himself in the head.
Hint: Being watchful:
Pay very close attention to your team. If you see someone doing odd
things, such as not shooting at enemies when they appear, or moving rather far
away from you when your walking, be on alert as this could be a sign of
infection. However, do not waste a Blood Test Kit on him to see if you are
correct. Just be on alert because they could mutate at any second. This also
goes for you as well -- if your team sees you doing the same things, they will
question your trust and may attack you.
Hint: Blood Test Kits:
Save Blood Test Kits for showing your team that you are not infected
to gain trust. Using them on a team member is useless because they get infected
randomly, and usually break out within a minute of infection.
Hint: Medi-Packs:
Always try to keep medics alive because medical packs can be few and
far between. If you want your medic to heal a member of the team, tell your team
to stay, then push your medic into the wounded team member. If he is hurt
enough, the medic will heal him.
Hint: Saving ammunition:
Try not to give all your team members the same weapon because your
ammo will go quickly. A good combination is you with a Shotgun or Machine gun,
your second man with the one you are not using, then a Pistol. The rest depends
on your ammunition supply.

For Walkthroughs Try These Sites:
www.gamespot.com
www.cheatplanet.com