The coaldblood_120809_1547.zip file you have requested: Maps Levels Missions / Campaign Maps / Left 4 Dead Campaign Map Coal'd Blood - 52.3mb is not available. Perhaps try browsing all files for the game Left 4 Dead and upload any files you want to share or are missing. This is the only information we could locate:
4/4 Maps Available - 80% Complete- The Steam Vent- The Crevasse- The Elevator- Cliff Rescue The survivors must seek refuge in an abandoned mine. Coal'd Blood is 4 maps long and takes about 45 minutes to play through. These levels also play GREAT in VS. This is still a work in progress.