Far Cry 3 was shown in detail at the exciting E3 computer games fair in Los Angeles, back in June, and the focus of the attention there was the co-op aspect of the game: four folks fighting their way across a jungle island in search of revenge. The video of the E3 demo, which has been narrated by a helpful Ubisoftian, can be seen below, where it details some of the ways in which the four revengers can work together to defeat their greatest foe: other dudes.
Four characters, each with their own personalities. Unlike the four RPS writers, of course, who are different skins on the same man. :(