Just a reminder: This game is developed by Zombie and published by Ignition Entertainment with support for customizable weapons, 12 multiplayer maps for support up to 16 players and four co-op themed maps that can also be played alone with AI support. Zombie hopes this game is the first salvo in a Blacklight multimedia franchise. A one-shot comic book is already available and there are plans for a motion picture based on the franchise.
Update: The game is now available on Steam and Direct2Drive.
Gallery: Blacklight Tango Down Screenshots