Left 4 Dead Cheats & Hints Quick Index
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Under any difficulty setting, a health pack and pills will spawn in the bathroom across the field from the house.
At the beginning of the sewers, if any gas tank catches fire or is shot, the entire station explodes into flames.
As soon as the level starts, look over the edge of the building and down to the street. Notice the box-like object that is partway down. Drop down to it. Although you will take some damage, you will still be alive. You can then drop down to ground level and continue the level.
Complete the following achievements to unlock Xbox Live Gamerscore points.
|Achievement||How to unlock
- 101 Cremations ( 20 points )
- Set 101 Infected on fire.
- Akimbo Assassin ( 30 points )
- Survive an entire campaign using only pistols.
- Kill all four Survivors in one life while playing as a Tank.
- Back 2 Help ( 20 points )
- Leave a safe room to save an incapped teammate and bring them back safely.
- Barf Bagged ( 20 points )
- Cover four Survivors with Boomer bile at once.
- Drag a Survivor 100 feet with your tongue.
- You or another Survivor take no damage after being vomited on by a Boomer.
- Brain Salad ( 15 points )
- Burn the Witch ( 10 points )
- Light a Witch with a Molotov.
- Chain Smoker ( 20 points )
- Constrict two Survivors in one life as a Smoker.
- Shove a Boomer and then kill him without him splashing on anyone.
- Kill a Witch with a single headshot.
- Survive the Dead Air campaign.
- Dead Giveaway ( 10 points )
- Heal a fellow Survivor when your own health is below 10.
- Punch a Hunter as he is pouncing.
- Dead Wreckening ( 20 points )
- Dole out 5000 total Survivor damage as a Special Infected.
- Do Not Disturb ( 20 points )
- Sneak past all Witches in a campaign without disturbing one.
- Double Jump ( 20 points )
- Pounce two different Survivors in one life as a Hunter.
- Drag and Drop ( 20 points )
- Rescue a Survivor from a Smoker's tongue before he takes damage.
- Field Medic ( 20 points )
- Heal 25 Survivors with a first aid kit.
- Grim Reaper ( 15 points )
- Survive the Blood Harvest campaign.
- Ground Cover ( 30 points )
- Save another Survivor from a Special Infected while on the ground.
- Helping Hand ( 20 points )
- Revive 50 incapacitated Survivors.
- Hero Closet ( 10 points )
- Rescue a Survivor trapped in a closet.
- Hunter Punter ( 10 points )
- Shove a Hunter off of a pinned and helpless Survivor.
- Headshot a Hunter while he's leaping.
- Lamb 2 Slaughter ( 20 points )
- As an Infected, incap a Survivor who has entered and left a safe room.
- Man vs Tank ( 30 points )
- Single-handedly kill a Tank.
- Mercy Killer ( 15 points )
- Survive the No Mercy campaign.
- My Bodyguard ( 15 points )
- Protect any Survivor from an attacking Infected 50 times.
- No Smoking Section ( 15 points )
- Kill 10 Smokers as they are pulling helpless Survivors.
- No-one Left Behind ( 20 points )
- Beat a campaign with all 4 Survivors.
- Nothing Special ( 30 points )
- Survive a campaign with no Survivors taking damage from Special Infected.
- Pharm-assist ( 20 points )
- Give pain pills to 10 Survivors.
- Pyrotechnician ( 20 points )
- Blow up 20 Infected in a single explosion.
- Kill 1000 Infected with a mounted machine gun.
- Safety First ( 30 points )
- Play an entire campaign with no Survivors taking friendly fire damage.
- Kill an Infected with a single blow from behind.
- Survive a campaign without being incapacitated.
- Stomach Upset ( 20 points )
- All Survivors complete a campaign without being vomited on.
- Tankbusters ( 20 points )
- Kill a Tank without it dealing any damage to a Survivor.
- Toll Collector ( 15 points )
- Survive the Death Toll campaign.
- Tongue Twister ( 20 points )
- Free yourself from a Smoker who has grabbed you with his tongue.
- Towering Inferno ( 10 points )
- Light a Tank with a Molotov.
- Unbreakable ( 30 points )
- Finish a campaign without ever being healed.
- Untouchables ( 30 points )
- No Survivors take damage after contacting the rescue vehicle.
- What Are You Trying to Prove? ( 35 points )
- Survive all campaigns on Expert.
- Witch Hunter ( 20 points )
- Kill a Witch without any Survivor taking damage from her.
- Zombicidal Maniac ( 30 points )
- Survive any campaign on Expert.
- Zombie Genocidest ( 20 points )
In Versus mode, there is a warehouse-type area immediately after the starting safe room. As a zombie, quickly run back to the emergency door on the other side of the warehouse. There should be a forklift near the door. Spawn and push this forklift in front of the doorway. Note: You may need to break the white door in front of the emergency door to get the forklift all the way in front of the doorway.
The amount of zombies you have to kill for the "Zombie Genocidist" achievement (53,595), is the same zombie kill count and achievement in Dead Rising.
You can see the city of Newburg from the "Dead Air" episode burning at the end of "Death Toll".
When Hunters are on fire, their pounces and attacks on Survivors do significantly more damage per hit. Use this to your advantage and deliberately set yourself on fire with the many fire pits or burning cars, then attack. This allows you to easily down Survivors. Note: This only works for Hunters, not Smokers, Boomers, or Tanks.
To kill a Tank faster, throw a Molotov cocktail or a gas tank and shoot it. When the Tank is on fire, shoot him with an assault rifle.
To kill a Witch faster, throw a Molotov cocktail. When the Witch is on fire, shoot her with an automatic shotgun.
Start a mission and shoot a few zombies using only your pistol. Then, select the "Take a Break" option and allow the NPCs to complete the level.
Play on the Easy difficulty. Get a shotgun, and find a Witch. Quickly approach the Witch with your flashlight off. As she rises, quickly shoot her in the head to kill her and get the "Cr0wnd" achievement.
Have a shotgun, and hold LT while running at a Hunter.
While in a safe house, preferably one with a combat shotgun, incapacitate the other three members of your group, then revive them. Doing this counts toward your achievement. It is easier with a combat shotgun because it deals a lot of damage fast. In a single player campaign, make sure all other survivors are in the lower red health area. When you incapacitate one of them, the others will try to revive them. You then need to shoot the others before they revive the incapacitated players or you will not get the points for reviving.
Start a new game in "Dead Air" under the Easy difficulty and select the finale. Once you have made it to the tanker, restock on ammo, grab a pipe bomb or Molotov cocktail, then answer the radio and start the gas pump. Once the pump is activated, run around to the right-hand side of the rescue plane and prepare to fight off the horde. A benefit of this position is that the horde cannot come at you from behind. When it is time for the Tank to appear, it will usually spawn on the far side of the plane. Run up to opposite side then run back and forth without coming around the plane to your side. Your AI teammates will not shoot the Tank when it is on the other side of the plane. By crouching you will be able to easily aim at the lower body from beneath the plane and take it down quickly.
Select the Easy difficulty while playing offline. Let the bots clean up the enemies on the map. If you get healed, you can restart the map after dying and not have it count against you.
If you have a health pack and are low on health, pause the game, and select "Take A Break". While you are idle, you will be healed. Once you are healed, rejoin the game, and the healing will not count against you. Note: This was done on the Easy difficulty.
The Survivors must jump into a sewer hole at a certain point. As an Infected, use this to your advantage. While playing as a Smoker or Hunter, hide behind one of the large canisters in the room. Once one of the Survivors open the hole and are done checking the vicinity, they will jump in. Due to the fact they must jump in one at a time or get stuck, make sure you have a clear view of the last one in line. Once all three are down and the fourth Survivor is still up, pounce or grab him or her. By doing this, he or she will not be able to be saved, unless someone throws a Molotov cocktail or pipe bomb.
This trick works best as a Hunter. Before you spawn in the No Mercy campaign, Level 3, go all the way to the very end, at the hospital. Once up the ladder, turn to your right, and there should be a dumpster. Move it all the way over to the manhole, and one of two things will happen. It will either fall all the way down, which is bad because the Survivors can't move it; or it will partially fall in. The survivors cannot move this at all. If you are a Tank, you can move a car over it, which is better than the dumpster. From here, do not puke on them as a Boomer, as it will attract the Horde. The Horde will try to move the object away from the manhole. Then, attack them as Hunters and Smokers. They may shoot you, but every so often, you can hurt them until finally they die.
Before you spawn, go all the way up to floor 28, where the elevator lets out. Just outside of the elevator is a generator. Move it in front of the elevator door. If the Survivors know what you are doing, they can move it. It requires three survivors to move an object. However, if you have someone else on the Infected side, they can go a little bit further and move the forklift in front of the doorway.
When using melee (LT), press Y, LT repeatedly. You will switch weapons and melee. This helps to complete the game on the Expert difficulty from hordes of attacking zombies.
Tanks will float when dead.
Note: This has only been tested on No Mercy. Enable the "Play against NPCs only on Versus Live" glitch. Kill all of the survivors. Then, go back to the respawn point. Have all of the infected up on the rooftop. Jump down on the Hummer. It will kill all of the infected. Wait for a few seconds, and you will now have a free roam camera, like on the PC version of the game. There are no secrets, but there is a mini-city of No Mercy underground that is very interesting.
Use the following trick to get a free roam camera without all NPC characters. Note: This only lasts for a very short time. It also works best if you are at a place where people can jump off somewhere to die. Have a rigged team, where four of your friends are on the NPC team and three of your friends are on Infected. Then have all eight people jump off. They will all die, and you (The Infected) should have a free roam camera. Note: This was tested on No Mercy: The Hospital.
Okay in the first level if you don't won't to go through all of the house you can skip it.
After you pick your weapons you can see a place in the roof were you can jump through the glass. Go to the edge and jump on it, across on anoter building (look down a bit) you should see air conditioning boxes. Jump down on them and then then jump on the dumpster and you are there. - Sent by [SpartanTag221
A Tank and Hunter can revive you if you become incapacitated. Hold X when you are near an incapacitated person if you are infected.
In some of the newspapers seen throughout the game, Dr. Breen from Half Life can be seen.
Press B to reload, then hold LT to knock back attacking zombies while reloading your gun.
When offline, there is a way to keep CPU characters from healing you. When a CPU character is trying to heal you with first aid, take out either your own first aid or pain pills. The CPU character will immediately stop healing you. Note: As soon as you put your healing item away, they will try again. This is useful when trying to get the "Unbreakable" achievement.
Use a sniper rifle and zoom in on a group of zombies. When you see a zombie standing behind another one, shoot at the one in the front. The zombie in back will also get shot.
In the hospital levels of "No Mercy", you can find a lot of X-rays with only four fingers. This is a reference to the game's cover art.
If you are an Infected when the elevator in "No Mercy" is activated and moving down, the number of what floor it is on will not change from "04", which is a reference to the "4" in the game's title.
In the hospital starting safe room of "No Mercy", there is graffiti on the wall reading "I killed..." and then lists different variables, including 53,594. This is the number of Infected you must kill to receive the "Zombie Genocide" achievement.
Go to any mounted minigun on any level. Stay behind it and start to melee it. You can do this by yourself or get other people to do this. Every time your gun hits the minigun, its launching strength will increase. Once you hit it enough, jump on top of it. This will either make you bounce very high or launch you across the map to your death. Bouncing straight up on it allows you to get to unreachable places such as buildings, airplanes, barriers. etc.
When on No Mercy's Gas Station level have a player pull the switch to lure in the horde. Eventually a tank will appear in the fighting. If the survivors are desperate they can send out a survivor to distract the tank. The survivor will then run to the Gas Station with the tank following him (hopefully). After that have him or another survivor blow up the Gas Station. The tank will be dead but so will the player that lured him there. This is a good way to have low-health survivors heal in this area.
Over by the trucks is a door that you can open later. However if you have some people meleeing it, it will eventually break.
This trick works best as a Hunter. Before you spawn in No Mercy level 3, go all the way to the very end, at the hospital. Once up the ladder, turn to your right and there should be a dumpster. Move it all the way over to the manhole and one of two things will happen. It will either fall all the way down, which is bad because the Survivors can move it; or it will partially fall in. The survivors cannot move this at all. If you are a Tank, you can move a car over it, which is better than any dumpster. From here, do not puke on them as a Boomer. It will attract the Horde. The Horde will try to move the object away from the manhole. Then, as Hunters and Smokers, you can just attack them. They may shoot you, but every so often, you can hurt them until finally they die.
In the warehouse near the end of the level, immediately after the area with the gas station and the lift, there is a forklift which you can use to block the door the survivors must go through. When the level starts, do not spawn. Instead, quickly go to the warehouse. When you get there, spawn and start pushing the forklift to the door. To push the forklift, keep attacking it. It will move very slowly but you will have time to push it before the Survivors reach it. The only way the Survivors can move it is by throwing pipe bombs at it repeatedly.
Before you spawn, go all the way up to floor 28, where the elevator lets out. Just outside of the elevator is a generator. Move it in front of the elevator door. , if the Survivors know what you are doing, they can move it. It will require three survivors to move an object. However if you have someone else on the Infected side, they can go a little bit further and move the forklift that is there in front of the doorway.
In No Mercy subway get to the part where you open the garage door that turns on the power. Beside the door there should be two tanks with a little circle sticking out of them. Try to jump on the circle, then try to jump on top of the tank. When you're on the tank jump onto the door.
In one part of the No Mercy chapter, the Survivors must jump into a sewer hole to enter them. As an Infected, use this to your advantage. One must be a Smoker or a Hunter. Do not spawn; instead hide behind one of the large canisters in the room. Once the players open the hole and are done checking the vicinity, they will jump in. Due to the fact they must jump in one at a time or get stuck, make sure you have a clear view of the last one in line. Once all three are down and the fourth Survivor is still up, pounce or grab him. By doing this he will not be able to be saved, unless someone throws a Molotov or a pipe bomb.
When using your pistol, if you shoot and hit the melee button just a split second afterwards (it should look as though you meleed, and shot in the middle) you should get an instant kill with your pistol. Note: This was only tested on easy mode. - Sent by [L4DLovr
At the end of the level where the safe room is located, when closing the door keep tapping X. When the door closes, it will open and the level will be finished. The door will be closed the next day.
Near one of the escalators in the subway, there is an ad for "Orange Box" Juice, which is a reference to Valve's Orange Box game compilation.
This trick can be done with two to four players. When in the lobby, have someone change to any character except for random or infected. Then, have the other person (people) change to infected. Have the person on survivors go to "Change Character" and highlight the "Infected" option. Start the game and have the person switch to infected before the game finds a dedicated server. The game will start, and there will be no one on the other team. It will take about two to five minutes before the NPCs open the door and leave the safe room. Note: If you kill the survivors or the survivors win, the game will not end. If someone joins the other team, it will be fixed and the game will continue. This glitch only works on the first levels of Blood Harvest and No Mercy.
This works best with shotgun but works most weapons, while you are reloading your weapon that takes a while, if you are attacked by a zombie you can smack them using the smack button without stopping the reload process and is essential if you are trying not to take damage if you are low on life. (you may already know this but if you don't then you do now) - Sent by [sykesdragon
Complete the game on any difficulty.
The APC in "Blood Harvest" is marked "TK-421" is a reference to the stormtrooper in Star Wars that Luke Skywalker and Han solo incapacitated.
When hordes of Infected appear, find a room with a door and no windows. Go inside and close the door. The Infected may break the door, but when you see a hole in it, shoot the Infected trying to break it down. Your teammates can handle most of the Infected.
Before the finale in "Dead Air", while still in the safe room you can sometimes see a box which advertising Team Fortress 2.
John Slater, who is the voice actor for the person who drives the boat in "Death Toll", also voices the sniper in Team Fortress 2.
If you are low on health and need somewhere to hide, find a bathroom stall. Go inside the stall and close the door. The door never breaks down. This works well if you are trying to heal yourself.
On the movie poster for "No Mercy", look closely to see that Zoey has three hands holding her gun.
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