 Addressing concerns voiced by fans, Gabe Newell responded to an email from Kotaku explaining that despite the upcoming sequel, "Left 4 Dead" would continue to be supported and more content is planned in the coming months.On August 4, 2009, Valve announced the second DLC pack.It contains a new campaign called "Crash Course", set shortly after the events of the "No Mercy" campaign, where the Survivors try to get to a Truck Depot after the helicopter they were in crashed.