Anyone else play this? Sath and I have played it since release, and played L4D since it's release as well, I still hop on for a round once in a while, especially when I'm angry! :p
There's a comic strip being released in parts up to the release of an add-on campaign detailing the events leading up to a character from L4D's death. There's 2 parts out now, I read the first and it was quite interesting, about to read the second!
http://www.l4d.com/comic/comic.php?page=43