Left 4 Dead 2

Strategy Guide/Walkthrough/FAQ - Left 4 Dead 2
Strategy Guide/Walkthrough/FAQ - Left 4 Dead 2: Crash Course DLC
Strategy Guide/Walkthrough/FAQ - Left 4 Dead 2: The Passing DLC
Strategy Guide/Walkthrough/FAQ - Left 4 Dead 2: The Sacrifice DLC

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Cheat Codes

At the Steam control panel, Right Click the "Left 4 Dead 2" option, and select "Properties" under the "My Games" tab. In the General tab, select "Set Launch Options", enter "-console" in that field, and accept it. Start the game, and the console window should appear at the main menu. Enter "bind p toggleconsole" as a console command. Then, type one of the following "map [map name]" codes and press [Enter] to load the corresponding map. Note: The same entries can be used with the "changelevel [map name]" or "changelevel [map name]" codes during the game.

Alternately, at the main menu, select "Options", then choose the "Keyboard/Mouse" selection. Enable the "Allow Developers Console" option. Press ~ to display the console window. Enter "bind p toggleconsole" as a console command. Then, type one of the following "map [map name]" codes and press [Enter] to load the corresponding map:

Dead Center

    map c1m1_hotel
    map c1m2_streets
    map c1m3_mall
    map c1m4_atrium

Dark Carnival

    map c2m1_highway
    map c2m2_fairgrounds
    map c2m3_coaster
    map c2m4_barns
    map c2m5_concert

Swamp Fever

    map c3m1_plankcountry
    map c3m2_swamp
    map c3m3_shantytown
    map c3m4_plantation

Hard Rain

    map c4m1_milltown_a
    map c4m2_sugarmill_a
    map c4m3_sugarmill_b (Mill Escape level) map c4m4_milltown_b (Return To Town level) map c4m5_milltown_escape

The Parish

    map c5m1_waterfront_sndscape (Demo level; will glitch graphics until you quit the game) map c5m1_waterfront
    map c5m2_park
    map c5m3_cemetery
    map c5m4_quarter
    map c5m5_bridge

While playing the game, press P or ~ to display the console window. Enter "sv_cheats 1" to enable cheat mode. If you entered the code correctly, the message "Server cvar 'sv_cheats' changed to 1" will appear. You can now enter one of the following codes to activate the corresponding cheat function. Note: Enabling cheat codes will disable achievements from being earned.

Result Cheat Code
Toggle God mode for entire team god [0 or 1]
Toggle no clipping mode noclip
Toggle Incendiary Ammo upgrade upgrade_add incendiary_ammo
Toggle Explosive Ammo upgrade upgrade_add explosive_ammo
Toggle Laser Sight upgrade upgrade_add laser_sight
Toggle infinite ammunition sv_infinite_ammo [0 or 1]
Refill health give health
Refill ammunition give ammo
Get ammo for primary weapon impulse 101
Spawn double pistol give pistol
Spawn Magnum give pistol_magnum
Spawn auto shotgun give autoshotgun
Spawn chrome shotgun give shotgun_chrome
Spawn pump shotgun give pumpshotgun
Spawn SPAS shotgun give shotgun_spas
Spawn SMG give smg
Spawn silenced SMG give smg_silenced
Spawn AK-47 give rifle_ak47
Spawn M16 give rifle
Spawn combat rifle give rifle_desert
Spawn hunting rifle give hunting_rifle
Spawn sniper rifle give sniper_military
Spawn grenade launcher give weapon_grenade_launcher
Spawn Hunter claws give melee
Spawn Boomer Bile give vomitjar
Spawn chainsaw give chainsaw
Spawn frying pan give frying_pan
Spawn guitar give electric_guitar
Spawn katana give katana
Spawn machete give machete
Spawn nightstick give tonfa
Spawn Molotov cocktail give molotov
Spawn pipe bomb give pipe_bomb
Spawn active pipe bomb under you boom
Spawn propane tank give propanetank
Spawn gas can give gascan
Spawn oxygen tank give oxygentank
Spawn first aid kit give first_aid_kit
Spawn defibrillator give defibrilator
Spawn adrenaline give adrenaline
Spawn pain pills give pain_pills
Spawn a zombie z_spawn zombie
Spawn Spitter z_spawn spitter
Spawn Jockey z_spawn jockey
Spawn Charger z_spawn charger
Spawn common zombie z_spawn zombie
Spawn zombie horde z_spawn mob
Spawn Boomer z_spawn boomer
Spawn Hunter z_spawn hunter
Spawn Witch z_spawn witch
Spawn Smoker z_spawn smoker
Spawn Tank z_spawn tank
Spawn special Infected z_spawn [Infected name]
Level select map [map name]
Level select changelevel [map name]
Toggle received damage, but cannot die buddha [0 or 1]
Toggle if bots do friendly fire damage sb_friendlyfire [0 or 1]
Set amount of damage done to survivors z_pounce_damage [number]
Set no clipping mode speed; default is "5" sv_noclipspeed [number]
Bot teammates shoot nonstop sb_openfire or open_fire
Change zombie health z_health [number]
Change zombie speed z_speed [number]
Set maximum range of Smoker's tongue attack; default is "750" tongue_range [number]
Set amount of time before a burning Witch dies from fire z_witch_burn_time [number]
Toggle witch to change targets or focus on the survivor that first alerted her z_witch_allow_change_victim [0 or 1]
Toggle controllable Boss Infected on any map director_no_human_zombies [0 or 1]
Toggle never ending panics director_panic_forever [0 or 1]
Force panic event director_force_panic
No mob rushes director_no_mobs [0 or 1]
Remove all bots Ent_Remove
Set damage for a Witch's attack does z_witch_damage [number]
Set maximum number of regular zombies z_common_limit [number]
Set maximum health of tank z_tank_health [number]
Set number of seconds until player loses control of the tank from not attacking survivors z_frustration_lifetime [number]
Set probability of infected CEDA agents carrying bile jars sv_infected_ceda_vomitjar_probability 0.1
Disable all wanderers, mobs, specials, and Bosses director_stop
Third person view thirdperson
Over the shoulder third person view thirdpersonshoulder
Toggle crosshairs crosshair [0 or 1]
Toggle set fixed camera in third person or third person shoulder mode thirdperson_mayamode
Disable third person view firstperson
Disable all cheatssv_cheats 0
Commit suicide kill or explode
Quit game quit

Cheat Codes (demo version)

At the Steam control panel, Right Click the "Left 4 Dead 2 Demo" option, and select "Properties" under the "My Games" tab. In the General tab, select "Set Launch Options", enter "-console" in that field, and accept it. Start the game, and the console window should appear at the main menu. Enter "bind p toggleconsole" as a console command. Close the console window, and start a single player game. While playing the game, press P to display the console window, then enter "sv_cheats 1" to enable cheat mode. If the message "Can't use cheats now; please exit to main menu and start your own server with "map mapname" so that you can enable cheats." appears, enable the "map c5m1_waterfront" or "map c5m2_park" code. You will return to the main menu. Enable either "map" code again, then enable the "sv_cheats 1" code again. Then, type one of the following codes and press [Enter] to activate the corresponding cheat function:

Result Cheat Code
Toggle God mode for entire team god [0 or 1]
Gain health give health
Defibrillator give defibrilator
Adrenaline give adrenaline
First aid kit give first_aid_kit
Pain Pills give pain_pills
Toggle no clipping mode noclip
Toggle Incendiary Ammo upgrade upgrade_add incendiary_ammo
Toggle Explosive Ammo upgrade upgrade_add explosive_ammo
Toggle Laser Sight upgrade upgrade_add laser_sight
Toggle infinite ammunition sv_infinite_ammo [0 or 1]
Refill ammunition give ammo
Double pistol give pistol
Magnum give pistol_magnum
Auto shotgun give autoshotgun
Chrome shotgun give shotgun_chrome
Pump shotgun give pumpshotgun
SPAS shotgun give shotgun_spas
SMG give smg
Silenced SMG give smg_silenced
AK-47 give rifle_ak47
M16 give rifle
Combat rifle give rifle_desert
Hunting rifle give hunting_rifle
Sniper rifle give sniper_military
Grenade launcher give weapon_grenade_launcher
Hunter claws give melee
Boomer Bile give vomitjar
Frying pan give frying_pan
Guitar give electric_guitar
Machete give machete
Nightstick give tonfa
Molotov cocktail give molotov
Pipe bomb give pipe_bomb
Propane tank give propanetank
Gas can give gascan
Oxygen tank give oxygentank
Spawn Spitter z_spawn spitter
Spawn Jockey z_spawn jockey
Spawn Charger z_spawn charger
Spawn common zombie z_spawn zombie
Spawn zombie mob z_spawn mob
Spawn Boomer z_spawn boomer
Spawn Hunter z_spawn hunter
Spawn Witch z_spawn witch
Spawn Smoker z_spawn smoker
Spawn Tank z_spawn tank
Commit suicide kill
Quit game quit

Quick healing

Use an adrenaline shot, then use your medikit to heal. This takes a much less time, especially when you are dealing with a horde.

Surviving large hordes

Find a corner, and have a melee weapon equipped. Hold [Melee] while aiming at the approaching zombies. Note: You may get hit a few times.

Defeating special Infected

Use the following tactics to kill special Infected:

    Boomer: Shoot at the stomach while staying as far back as possible.

    Charger: Get close to it. This will prevent it from charging, and then it can only inflict melee damage. This makes it easier to kill it with any weapon (melee or gun).

    Hunter: When it is in its pouncing position, use a shotgun to nudge it away, then shoot it in the face. Alternately, use the shove move while it is jumping at you to force it to stumble back, thus preventing it from landing on you.

    Jockey: Get into a huddle with your teammates, and wait for the Jockey to appear. When you see it, all teammates can shoot the Jockey at the same time. Huddling together will prevent it from launching at you. Alternately, use the shove move while it is launching at you to force it to stumble back, thus preventing it from landing on you.

    Smoker: Use a similar strategy as with the Charger. You must get directly in front of it before killing it. The Smoker uses its tongue to grab survivors from far distances, but it cannot do that when you are very close.

    Spitter: Shoot at the head, and be ready to get out of the way when it spits.

    Tank: Go to high ground, and shoot at it while dodging it. In Co-op mode, use a grenade launcher for a frontal assault while your teammates fire at its back with shotguns. Alternately, do not try to deal any damage to the Tank, but instead hide somewhere and let the survivor A.I. kill it.

"Eat Your Brains" song in Swamp Fever: Plank Country

In the bar in the abandoned town, find the jukebox, and play it to hear "Eat Your Brains" by Jonathan Coulton.

Portal reference

In The Parish: The Park, when you reach the bar with the jukebox inside, keep skipping through the songs to eventually hear the song "I'm Still Alive" from Portal.

Easy "A Spittle Help From My Friends" achievement

Start a versus match with friends. Play as the Spitter, and have a friend as the Smoker. Have your friend start choking a survivor with the Smoker, then spit on the survivor with the Spitter while the Smoker is choking them to get the "A Spittle Help From My Friends" achievement.

Easy "Back In The Saddle" achievement

Play against a friend. Jump on the back of a bot as the Jockey, and have your friend melee you off. Run away to recover. Then, jump on a survivor's back to get the "Back In The Saddle" achievement.

Easy "Beat The Rush" achievement

Easy "Dismemberment Plan" achievement

In Dead Center: The Atrium Finale in Survival mode, kill the bots so they do not steal your kills. Then, grab the grenade launcher and a bile bomb. Once the horde starts, throw the bile bomb, and wait for a large number of them to get around it. Then, fire the grenade launcher at the horde around the bile bomb. You should get the "Dismemberment Plan" achievement as long as their were a large number of zombies standing around the bile bomb.

Easy "Fried Piper" achievement

Easy "Gong Show" achievement

In Dark Carnival: The Barns, find the strength-testing mini-game in the first area. Inject adrenaline, and hit it with a melee weapon to get the "Gong Show" achievement.

Easy "Guardin' Gnome" achievement

In Dark Carnival: The Fairgrounds, find the shooting range. Score over 500 points to make a garden gnome appear. Carry the gnome to the end of the level, and board the chopper with it at the end of Dark Carnival: The Concert to get the "Guardin' Gnome" achievement.

Easy "Level A Charge" and "Scattering Ram" achievements

Easy "Robbed Zombie" achievement

In Dead Center: The Streets, reach the "Save 4 Less" store where you must get the cola. Kill all the CEDA agents along the way, and collect the vials of Boomer vomit they drop (not all CEDA agents will drop Boomer vomit). If you still need more vials of Boomer vomit once you reach the store, just set off the alarm, and hordes will keep coming with random CEDA agents.

Easy "Rode Hard" achievement

Start a versus match with friends. Play as the Jockey, and have a friend as the Spitter. Then, jump onto a survivor as the Jockey, and steer them into the Spitter's acid to get the "Rode Hard" achievement.

Easy "Shock Jock" achievement

In Dead Center: The Atrium Finale in Survival mode, have a human survivor go up to the top of the stairs, shoot out an area of the glass railing, and jump off so they die. Then, grab the defibrillator, and revive them. Restart the level again, and repeat this until you get the "Shock Jock" achievement.

Easy "Stache Whacker" achievement

In Dark Carnival: The Barns, find the Whack-A-Mole mini-game. Get a score of 42 to get the "Stache Whacker" achievement.

Easy "The Quick And The Dead" achievement

In Dead Center: The Atrium Finale in Survival mode, kill any bots so they cannot revive the human survivor. Grab an adrenaline shot. Then, go up to the top of the stairs, shoot out an area of the glass railing, and have a human survivor fall off where the glass railing was so they are hanging onto the edge. Inject the adrenaline shot, and revive them. Have them fall off the edge again, and revive them again. Repeat this until you get "The Quick And The Dead" achievement.

Easy "Violence In Silence" achievement

In The Parish: The Cemetery, when you reach the impound lot area with all the cars, just use a melee weapon to kill the Infected. The computer players will not set off an alarm. All the red cars have car alarms, so try to stay by the white cars. Once you make it past the area with all the cars without setting off an alarm, you will get the "Violence In Silence" achievement once you make it to the safe house.

Easy "Wing And A Prayer" achievement

Note: All three other players must be bots for this trick to work. Before the alarm goes off, clear all explosive items and do not use incendiary ammo. Then, crouch in the corner near the exit to the plane so the Infected cannot get you from behind or either side. Once the alarm is sounded and the horde start attacking, throw a Molotov to block the entrance. After that, the computer players should stand in front of you and take the damage. Just stay in the same place the entire time, and you should get the "Wing And A Prayer" achievement.

Steam achievements

Successfully complete the indicated task to unlock the corresponding achievement. To view your achievements and stats in Steam, select "Community", "My profile", "View all my games", then the game and view stats.

    A RIDE DENIED: Kill a Jockey within 2 seconds of it jumping on a Survivor.
    A SPITTLE HELP FROM MY FRIENDS: As the Spitter, spit on a Survivor being choked by a Smoker.
    ACID REFLEX: Kill a Spitter before she is able to spit.
    ARMORY OF ONE: Deploy an ammo upgrade and have your team use it.
    BACK IN THE SADDLE: As the Jockey, ride the Survivors twice in a single life.
    BARREL ROLLED: Kill a Special Infected with an exploding barrel.
    BEAT THE RUSH: In a Survival match, get a medal only using melee weapons.
    BRIDGE BURNER: Survive the Parish campaign.
    BRIDGE OVER TREBLED SLAUGHTER: Cross the bridge finale in less than 3 minutes.
    BURNING SENSATION: Ignite 50 Common Infected with incendiary ammo.
    CACHE AND CARRY: Collect 15 gas cans in a single Scavenge match.
    CHAIN OF COMMAND: Kill 100 Common Infected with the chainsaw.
    CHAOS GENERATOR: Have all 3 generators running at once in "The Sacrifice" finale.
    CL0WND: Honk the noses of 10 Clowns.
    CLUB DEAD: Use every melee weapon to kill Common Infected.
    CONFEDERACY OF CRUNCHES: Finish a campaign using only melee weapons.
    Connecting Fight: Play a Versus game on Dead Air from start to finish.
    CRASS MENAGERIE: Kill one of each Uncommon Infected.
    DEAD IN THE WATER: Kill 10 swampy Mudmen while they are in the water.
    DISMEMBERMENT PLAN: Kill 15 Infected with a single grenade launcher blast.
    FRIED PIPER: Use a Molotov to burn a Clown leading at least 10 Common Infected.
    FUEL CRISIS: Make a Survivor drop a gas can during overtime.
    GAS GUZZLER: Collect 100 gas cans in Scavenge.
    GAS SHORTAGE: Cause 25 gas can drops as a Special Infected.
    GONG SHOW: Prove you are stronger than Moustachio.
    GREAT EXPECTORATIONS: As the Spitter, hit every Survivor with a single acid patch.
    GUARDIN' GNOME: Rescue Gnome Chompski from the Carnival.
    HEAD HONCHO: Decapitate 200 Infected with a melee weapon.
    HEARTWARMER: In a Versus match, leave the saferoom to defibrillate a dead teammate.
    HUNTING PARTY: Win a game of Scavenge.
    KILL BILL: Have Bill sacrifice himself for the team.
    LEVEL A CHARGE: Kill a Charger with a melee weapon while they are charging someone.
    LONG DISTANCE CARRIER: As the Charger, grab a Survivor and carry them over 80 feet.
    MEAT TENDERIZER: As the Charger, grab a Survivor and smash them into the ground for a solid 15 seconds.
    MIDNIGHT RIDER: Survive the Dark Carnival campaign.
    PRICE CHOPPER: Survive the Dead Center campaign.
    QUALIFIED RIDE: As the Jockey, ride a Survivor for more than 8 seconds.
    RAGIN' CAJUN: Survive the Swamp Fever campaign.
    ROBBED ZOMBIE: Collect 10 vials of Boomer vomit from infected CEDA agents you have killed.
    RODE HARD, PUT AWAY WET: As the Jockey, ride a Survivor and steer them into a Spitter's acid patch.
    SACRIFIZZLE: As a Special Infected, incap someone who is trying to sacrifice themselves.
    SCATTERING RAM: As the Charger, bowl through the entire enemy team in a single charge.
    SCAVENGER HUNT: Stop the enemy team from collecting any gas cans during a Scavenge match.
    SEPTIC TANK: Use a bile grenade on a Tank.
    SHOCK JOCK: Revive 10 dead Survivors with the defibrillator.
    SOB STORY: Navigate the sugar mill and reach the safe room without killing any Witches.
    SPIT HAPPENS: As the Spitter, hit every Survivor with a single acid patch.
    STACHE WHACKER: Prove you are faster than Moustachio.
    STILL SOMETHING TO PROVE: Survive all campaigns on Expert.
    Stream Crosser: Survive the Cold Stream campaign on any difficulty.
    STRENGTH IN NUMBERS: Form a team and beat an enemy team in 4v4 Versus or Scavenge.
    TANK BURGER: Kill a Tank with melee weapons.
    THE QUICK AND THE DEAD: Revive 10 incapacitated Survivors while under the speed boosting effects of adrenaline.
    THE REAL DEAL: Survive a campaign on Expert difficulty with Realism mode enabled.
    Valve Gift Grab 2011 - L4D2: Collect three gifts dropped by Special Infected in Versus Mode.
    VIOLENCE IN SILENCE: Navigate the impound lot and reach the cemetary safe room without tripping any alarms.
    WEATHERMAN: Survive the Hard Rain campaign.
    WING AND A PRAYER: Defend yourself at the crashed airliner without taking damage.

The following achievements require "The Passing" bonus downloadable content:

    Torch Bearer: Survive The Passing Campaign.
    Port of Scavenge: Play 5 full games of Scavenge on The Port.
    Fore!: Knock off the heads of 18 infected with the golf club.
    Til It Goes Click: Using the M60, kill 25 infected without letting go of the trigger.
    Killing Them Swiftly To This Song: Play the new Midnight Riders song on a jukebox.
    Wedding Crasher: As the Charger, grab a Survivor and crash them through 8 chairs at the wedding.
    Cache Grab: Open 5 foot lockers.
    Kite Like a Man: Kill a tank only with damage from the original Survivors.
    Grave Robber: Collect 10 items dropped by a Fallen Survivor.
    Mutant Overlord: Play 6 Mutations.

The following achievements require "The Sacrifice" bonus downloadable content:

    Supreme Sacrifice: Complete "The Sacrifice".
    Kill Bill: Have Bill sacrifice himself for the team.
    Barrel Rolled: Kill a Special Infected with an exploding barrel.
    Chaos Generator: Have all 3 generators running at once in "The Sacrifice" finale.
    Sacrifizzle: As a Special Infected, incap someone who is trying to sacrifice themselves.
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