The feature war between this year's upcoming downloadable shooters is growing intense, with more and more bullets finding their way onto the list in every fact sheet. Blacklight: Tango Down, developed by Zombie Studios, now touts four-player co-op missions, in addition to its player customization, experience-driven progression system and competitive multiplayer modes.

The "Black Ops" co-op missions will challenge you and three other e-soldiers to best an enemy faction that has overrun the streets of Balik. As a reminder, we'll note that the streets of Balik are "both futuristically alien as well as hauntingly familiar." They're the urban equivalent of an Ed Wood flying saucer, and that has to count for something.

Blacklight: Tango Down will land on Xbox Live, PlayStation Network and PC this summer for an expected price of $15.

This article was originally published on Joystiq.