Unit 13 releases on Vita in March
by Andrew Yoon, shacknews.com, Jan 12, 2012 12:30PM PST
Unit 13 is an online-enabled shooter that lets you play a variety of short missions. There are four mission types: Direct Action, Deadline, Elite, and Covert. While there is no online competitive play, unlike Zipper's other shooters, there is online co-op, and a persistent leaderboard that can be updated via 3G.
The PlayStation.Blog has a video walkthrough of a Covert mission: