A new trailer for Splinter Cell Conviction has landed on Xbox Live, giving us the first official reveal of the rumored co-op mode. The game will feature an entire co-op campaign, which will serve as a prequel to the single-player story of Sam Fisher taking on his old organization, Third Echelon. The co-op campaign stars two special agents, an American Third Echelon agent named Archer and a Russian Voron agent named Kestrel. From what we can glean from the trailer, the two agents are paired up to stop a "rogue element within the Russian military" who has acquired "advanced warheads" to sell on the black market. They do this by sneaking, killing hapless guards and blowing things up. In short, it looks like a lot of fun. Download the trailer yourself -- using the handy link below -- and expect some fresh impressions of the game right here on Joystiq very, very soon. Shortcut: Add the Splinter Cell Conviction co-op trailer to your 360 download queue [Via Xbox.com]