Nice one, never encountered this glitch myself.
The weirdest glitch I've ever seen in any CM game was when in some Shock Force campaign mission the whole map exploded like some sort of tactical nuke went off. I wish to God I had saved some screenshots of that. One giant crater with several scattered burning vehicles in it, no building left standing (although the foundations/rubble were floating above the the crater). IIRC I had thirteen men left alive maybe, Syrians had four or so.