Wow so cant wait...this looks like a really fun gameplay mode.
|Want to see the brand new map Valve's created for Left 4 Dead's free Survival Pack DLC? Thought so! We got Chet Faliszek, the game's writer, to give us an exclusive guided tour of the new map, "Lighthouse." Click play below to check it out, then we'll regroup for further details and impressions from our hands-on sessio|