"The Sacrifice" DLC for Left 4 Dead and Left 4 Dead 2 arrives October 5 on Xbox 360 and PC. The expansion will add a new campaign to both games, the L4D1 "No Mercy" game type to L4D2 and a new mechanic in which players can choose to sacrifice themselves for the team. While free for PC players, the add-on will cost 560 Microsoft Points ($7) on Xbox.

To help you avoid confusing this with "My Sacrifice," the 2001 hit single by Creed, we've included some visual aids in the form of a trailer after the break and screens in the gallery below.

This article was originally published on Joystiq.

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