Rather than coasting onto Xbox Live Marketplace with ease, we regret to inform you that the new Left 4 Dead DLC 'Crash Course' has made an emergency landing. The DLC is currently listed for a more expensive 800 and not the promised 560, Major Nelson informs. If you're anxious to get your hands on the new content, just sit tight and try to relax. We wouldn't want you to lose your mind and do something you'd regret now, would we?