It's been rumored for ages, and badly hidden after bits and pieces being revealed on the Internet, including a Target pre-sale tag and registered domain names. But now it's no longer a secret -- Activision is working on Call of Duty: Black Ops II. The game, under development at Treyarch, got its "official" unveil this evening during the NBA playoffs, and the trailer leaked online just a slight bit before that. It paints a pretty bleak picture, taking place in the year 2026 and featuring a number of unmanned vehicles on patrol, which are soon overtaken by a silent enemy looking to wreak havoc.