Been mentioned several times in the past.
Here's a few threads. First one has a different video than yours.

http://www.vehicross.info/forums/sho...DDING+HEAT+GUN

http://www.vehicross.info/forums/sho...DDING+HEAT+GUN

Start around post #31:
http://www.vehicross.info/forums/sho...DDING+HEAT+GUN

http://www.vehicross.info/forums/sho...DDING+HEAT+GUN

http://www.vehicross.info/forums/sho...DDING+HEAT+GUN