Thing, The

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.

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.

You can preserve a flare and use it over and over as a portable light source, ignite one, but don't toss it away. You need to keep it on hand to do this glitch. When the flare is about to wink out (extinguish), highlight another object then go back to the flare.

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.

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.

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.

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.

Highlight "Flare", enable it, but do not throw it down. When it is low, press Left or Right and highlight another object. Then, highlight "Flare" again. It will have restarted and you will not lose another one.