Next week, downloadable add-on "The Sacrifice" comes to Left 4 Dead and Left 4 Dead 2, giving the original Survivors, Zoey, Francis, Bill and Louis, a chance to beat up on Spitters, Chargers and Jockeys with melee weapons.

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To set the mood, Valve has released a heart-pounding cinematic trailer for The Sacrifice, filed with thrills, chills and Bill's molotov cocktail attack on a trio of Tanks. Let's hope it never comes to that as we follow the original quartet of Survivors on their journey down south.

The Sacrifice makes its way to the Xbox 360, PC and Mac on Tuesday, October 5. Xbox 360 owners will be charged 560 Microsoft Points, while PC and Mac players will get the add-on content free of charge.