22 May 12, 11:30PM
Yep, it was in stereo. The game will only alter the sound correctly with regards to distance if it is in mono. To correct this in audacity, simple click the track name and select 'split stereo to mono' from the dropdown, delete one of the resulting tracks, and export it. Since I already had it open, I took the liberty of correcting it.
http://dl.dropbox.com/u/13110746/sniper.ogg
http://dl.dropbox.com/u/13110746/sniper.ogg