Yeah Finally the news !!
"release this spring and introduces a new multiplayer game mode entitled, Survival, plus two complete campaigns for Versus Mode"
"release for the Source Software Development Kit (Source SDK) will allow the creation of custom Left 4 Dead campaigns that will be discoverable via L4D's matchmaking system."
For Spring !(I hope not in May or June but before )
Here the link :
http://www.l4dmods.com/index.php?opt...e&catid=2:news