The box_291209_3838-L4D2.zip file you have requested: Maps Levels Missions / Multiple Gametypes / Doom Box - 131.95kb is not available. Perhaps try browsing all files for the game Left 4 Dead 2 and upload any files you want to share or are missing. This is the only information we could locate:
This is a very fun Survival map. I've tried to get 4 minutes on it but I just can't (of course I'm not too good an L4D2 player.