Left 4 Dead 2 'The Passing' Achievements Tease New 'Cache Grab' Mode, 'Mutations'

Left 4 Dead 2 developer Valve Software has revealed the achievements due to be added to the zombie apocalypse shooter by its upcoming downloadable content 'The Passing,' which neatly teases some of the multiple new game modes that it'll deliver.

One achievement involves "Cache Grab," which Valve describes as involving new foot lockers, while another is awarded for playing 6 mysterious "Mutations." Valve offers no explantation of what Mutations are, instead promising to reveal them tomorrow.

A ghoulish wedding and the new 'Fallen Survivor' special infected.

Valve also confirms that "one of the original Left 4 Dead Survivors is off shooting zombies in Heaven"--a tragedy that we'll likely see unfold in the new Left 4 Dead DLC that was tentatively scheduled for release a month or so after The Passing.

The Passing will be released this week for PC and Xbox 360, costing $7 (560 Microsoft Points) on 360. Until then, enjoy this list of new achievements.

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.