Left 4 Dead 2 TV Spot #2

The spot, created by Valve, features the song Electric Worry by the band Clutch (0:32) - you must be 17 or older to download or view it
Valve has released a TV spot for Left 4 Dead 2, showcasing the sequel to co-operative multiplayer thriller developed for PC and Xbox 360. Introducing the AI Director 2.0, L4D's dynamic gameplay is taken to the next level by giving the Director the ability to procedurally change weather effects, world objects, and pathways in addition to tailoring the enemy population, effects, and sounds to match the players' performance. Set for release on November 17, Left 4 Dead 2 features new Survivors, boss zombies, weapons, and items.