Left 4 Dead 2 Special Campaign Achievements are unique challenges tied to specific campaigns within the game. They require players to complete particular objectives or perform tasks under special conditions. These achievements often involve teamwork, strategic planning, and surviving waves of zombies while meeting specific criteria. Earning them can unlock rewards and add an extra challenge for experienced players.

Dead Center

Achievement	Completion
Robbed Zombie	Collect 10 vials of boomer vomit from CEDA agents. The yellow-suit zombies are most commonly found at Dead Center.
Pole Position	Escape before the first Tank appears in the final Act.

The Passing

Achievement	Completion
Shotgun Wedding	Kill the Witch Bride with a shotgun in Act 1.
Cache Grab	Open five foot-lockers.
Kite Like a Man	Let the original survivors on the bridge kill the Tank in the final Act.
Killing Them Swiftly to This Song	Find and play the jukebox in Act 2.

Dark Carnival

Achievement	Completion
Guardin' Gnome	Win the shooting minigame by scoring 750 points in Act 2, then bring the Gnome prize to the end of the campaign.
Gong Show	Win the strong man minigame in Act 4 by taking an adrenaline shot before using the melee.
Stache Whacker	Win the whack-a-mole minigame by scoring 42 points in Act 4.
Cl0wnd	Honk ten clown zombies by shoving their noses.
Fried Piper	Burn ten zombies led by a clown zombie with a molotov.

Swamp Fever

Achievement	Completion
Dead in the Water	Kill 10 Mudmen while they are in the water.
Wing and a Prayer	Do not take any damage during the air crash event in Act 2.

Hard Rain

Achievement	Completion
Sob Story	Do not kill any witches in the Sugar Mill.

The Parish

Achievement	Completion
Bridge Over Trebled Slaughter	Cross the bridge in Act 5 in under 3 minutes.
Violence in Silence	Do not trigger any car alarms in Act 3.