Killzone: Mercenary Announced and gamescom 2012 Trailer

Experience Killzone from a brutally new perspective, only on PlayStation Vita
Designed specifically for the PlayStation Vita platform, Killzone: Mercenary is a first-person shooter that makes full use of the device's graphical and input capabilities. It was built on the same engine as Killzone 3, and it enhances the familiar twin-stick FPS control scheme with touch pad functionality for interesting new gameplay possibilities.
For the first time in a Killzone campaign, you’ll be fighting alongside Helghast forces as well as ISA specialists, carrying out missions that the regular soldiers just won't or can't. As a mercenary you are free to decide which tactics and loadouts you will use to fulfill your contract; your employers will reward you with state-of-the-art weaponry and cold, hard cash as long as you get the job done.
Killzone: Mercenary is slated for a 2013 release - the first video is now locally mirrored.