Update: Wait! MS just confirmed that the content’s incorrectly priced. It’s about to be dropped to 560MSP, so don’t buy it until it’s been adjusted.
Left 4 Dead’s Crash Course DLC campaign is now up on Live, priced 800MSP.
Left 4 Dead’s Crash Course starts with our Survivors right after their rescue helicopter from the No Mercy campaign crash lands on the outskirts of town. This two chapter campaign includes Co-op, Survival and Versus action, and ten new achievements.
Just waiting for the free PC version now.