The second DLC for Left 4 Dead is now available on Steam and XBL. Crash Course, which focuses on content the small, but hardcore competitive multiplayer community has been clambering for, features many updates to versus mode. Bridging the gap between No Mercy and where we find the survivors at the start of Death Toll the new campaign features new dialog, new locations, and a new finale to get murdered during. The versus matches should take 30 minutes under Crash Course, with added recharge timers for the infected teams, so you know when your allies are ready to go. Item spawns have also been tweaked to help with balance issues and unpredictability in versus.

Go forth, and shoot each other. And if you’ve yet to pick up the game, it’s 50% off on Steam until this Thursday.