As a lot of you know there's a fairly large update for l4d coming out in the near future (before April 21) which includes the Left4Dead SDK, and a new gametype.

The gametype is pretty much a non stop finale, as in zombies rush at you non stop with no end.

The gameplay footage of the Survival Mode has been released.

This video is unable to be displayed because the YouTube video tags were used incorrectly. Please review proper use of the tags here.

This video is unable to be displayed because the YouTube video tags were used incorrectly. Please review proper use of the tags here.

This video is unable to be displayed because the YouTube video tags were used incorrectly. Please review proper use of the tags here.

This video is unable to be displayed because the YouTube video tags were used incorrectly. Please review proper use of the tags here.

yeaaaaa