So in Far Cry 3, you fight a bunch of crazy people who've taken over an island. The latest trailer talks about two of those crazies: Vaas and Buck. The former is actually someone we're sort of familiar with, since he's appeared in screenshots and trailers galore, and also happens to be the dude on the box art. Yep, the one with the cool hair.
Vaas Montenegro is the boss of his crew and quite enjoys his work as a slave trader. He originally planned to ransom our hero, Jason, but ends up fixated on killing him instead.
Buck is a violent fellow from Australia with a messed up mind. He's violent, depraved, and doesn't much care what he eats. In the game, Jason will be tasked with tracking down a priceless knife for Buck (seen in the video) in return for his friend Keith's safe release. There's some implied torture there, and Ubisoft mentions that in his time as Buck's hostage, Keith becomes "so much more," because "Buck is only human." We shudder to think.