Assassin's Creed 4: Black Flag on both PS3 and Xbox 360.
Under Control is an event where players partake in matches of Domination, a territory-based capture mode, as one of Assassin's Creed 4's aristocratic characters: the Huntsman, the Puppeteer, the Dandy or the Duelist. Completing individual objectives will earn you a custom in-game profile picture and title, but completing the community objectives established by Ubisoft will net further in-game goods - like special assassin costumes.
As this is the first multiplayer event, Ubisoft is soliciting feedback from players. PS3 players who provide praise, complaints or any kind of constructive criticism over on the PlayStation Blog or in this community thread will net some exclusive Assassin's Creed 4 avatars, which Ubisoft will send via code voucher in an XMB message prior to November 23. We've inquired with Ubisoft whether Xbox 360 players will have the same opportunity.
The Under Control community event starts sometime tomorrow and lasts throughout the weekend. The full list of community objectives will be located in the events section in-game.