Reminder to close this ticket now that the fix is in devbranch.

Uploaded file chernadebug.rar contains a repro mission folder as well as associated .rpt demonstrating the same PhysX error. Video is here: https://www.youtube.com/watch?v=Dzc7US3jd1Y&feature=player_detailpage&x-yt-cl=84924572&x-yt-ts=1422411861#t=361

Sepia colour is from flux, sorry. The game crashed just as the bug occurred. Used mods were RHS, ALiVE, and AiATP. I couldn't reproduce in vanilla.

Reproduced successfully in vanilla using vlad_8011's mission.sqm, thanks Vlad! Uploading .rpt, video here:

http://youtu.be/OiP6k7nUqWY

Reproduces all three of this ticket's features: http://feedback.arma3.com/view.php?id=22503

Sound loss from left channel (bug first occurs): 1:12 (https://www.youtube.com/watch?feature=player_detailpage&x-yt-cl=85027636&v=OiP6k7nUqWY&x-yt-ts=1422503916#t=68)
Sunk tanks: 5:30 onward (https://www.youtube.com/watch?feature=player_detailpage&x-yt-cl=85027636&v=OiP6k7nUqWY&x-yt-ts=1422503916#t=330)
Camera shake is visible during the same period as the sunk tanks.

Tanks that were destroyed or abandoned by AI prior to the occurence of the bug are not affected. Sunk tanks seem otherwise normal and can move a bit, are accessible in inventory screen, etc.