"Arcane studios, with a little help from half life 2's art Director, is working on a new kind of shooter. They're trying to fuse singleplayer with multiplayer in the hopes of creating something we've never seen before: crossplayer."
There is unfortunately not much detail in this article, just a little about the premise of 'crossplayer'.
But damn this premise is interesting and the two involved in bringing it to life definately have the talent needed.
"more info is expected in the Games for Windows magazine and the upcoming season premiere of the 1up show."