Valve's just announced Scavenge mode for Left 4 Dead 2 at a press event in CA, an instant play-fix designed to deliver "quick, more frantic gameplay," according to Joystiq. The four Survivors have to ...
Update: Valve has detailed The Passing a bit more, citing the single-player, multiplayer and co-op modes that will be present in the DLC. It will also include weekly game mode events called "Mutations ...