Well i thought this was out but ill have to let pages load first before i can confirm but this is a whole 5 episode campaign made by romka who is also seemingly well known.

Any way this is a full 5 episode campaign and includes player made gauntlet events and some heavy fog effects to boot (L4D2 inspired clearly) but according to some review has a handful of FPS drops in places from slightly bad pogramming.

Regardless i want to see about getting a group together to try out this map if possible

http://www.l4dmods.com/index.php?option ... &Itemid=13

That link had a download button at the bottom which ill leave to DL whilst im out.

Download link for the lazy or blind

Looks good, I'll try it sometime ^^