The Left 4 Dead 2 intro video (music and sound effects only)

Turns out that the .bik video file of Left 4 Dead 2's intro has four audio tracks! Perhaps for people with surround sound setups? At any rate, audio track 2 removes almost all of the spoken lines, and leaves just the sound effects and music. I thought I'd upload that just for fun. I discovered this while attempting to work with this video file for a larger project I have in mind. Not sure yet if I'll be able to do it, but I'll try.