It's been a long time waiting, but Valve is finally delivering on the promised Left 4 Dead downloadable content with a new plot-driven campaign entitled "Crash Course." [...] The campaign is designed specifically for the Versus mode as it has a shorter play time. According to Valve, "Crash Course" can be played through in Versus mode in roughly 30 minutes. It can, however, still be played through in the other modes as well. [...] The DLC will be released next month and, as tradition goes, will be free for PC players of the game. Unfortunately for Xbox 360 L4D players, the expansion will run you 560 Microsoft Points ($7 USD).
