http://marsh.speedrunwiki.com/Left4Dead/no%20mercy%205%20-%20rooftop%20finale.rar

for high quality MP4 download.

I like this spot. It's a lot more fun than a closet but still provides protection. It also has the advantage of not allowing a late boomer to pin you into the closet while the tank comes.

A little sloppy (I take way too much damage!) but I was just happy to finish it.