Hey all found this great litle mod. It has some issues an hdr texture but with shaders set to medium its fin here the link and set it up. i can host a dedicated server on my pc that runs the maps if peopl want to play. Here is the link.
http://www.l4dmods.com/forums/viewtopic.php?f=28&t=618

Hi people,

Welcome to Dark Fallen's Steam Group.