• Version Dev 3 (Oct. 15, 2011):  http://www.l4dmods.com/index.php?app=downloads&showfile=109 | (Dummy index: http://www.l4dmaps.com/details.php?file=5301) 
• Change Log consisting of minor updates found at both sites above.
• md5sum (.7z): a0a613647ca14303d1634908addfaaf6

• Version Dev 2 (Jul. 10, 2010): http://www.mediafire.com/file/i1mjzlqtjq0/L4D2_badwater_basin_dev2.7z | (Mirror: http://www.megaupload.com/?d=29DSTV1V [DEAD])
• Warning! This version is not compatible with the most recent version of L4D2
• Source files have been updated to include all three instances used.
• Extensive "Change Log" is in the mapsrc folder within the VPK.
• The change log is also available at L4Dmaps.com (click on the third button from the top to see the log... the button looks like a text file icon)
• md5sum: d6cf5cd5e5db9d8dcc0ff6260e80e205
• Version Dev 1 (Mar. 20, 2010): http://www.mediafire.com/file/dmg2tnjngig/L4D2_badwater_basin_dev1.7z | (Mirror: http://www.megaupload.com/?d=ZNQYUUK1 [DEAD])
• Source files (.vmf) are available in the VPK. Feel free to use them however you like.
• md5sum: b668ebe67a40eff2eb463e49b781bb32

Feedback (questions, comments, and complaints) can be given through Steam Forums, L4Dmaps.com, or feel free to contact me.

The main goal of Badwater Basin (for L4D2) is to create payload map that is fun, short, and informative. I don't think I've met most of those goals (it's definitely short), but I expect to refine the map as I get more feedback. The use of TF2 visuals is a side effect: brush work had taken up most of my time and I wanted to release something that would allow me to experience actual game play and player feedback. Just as Valve released their source to help community mappers, all of my efforts with this campaign would be pointless if I didn't release the source in a similar fashion. I'm not sure if the L4D2 mapping community will find this example campaign to be valuable. I hope it does!

The current version (Dev 3) is still primarily for developers and testers, but the tiny campaign can be finished from start to finish without any "show-stopping bugs" (and getting trapped in the Red spawn point is no longer an issue, I think). Thanks!