Straight from E3, there's finally confirmation that the new Assassin's Creed game will be on new platforms only, such as Xbox One.
Footage shows four different assassins doing what they do best in Paris, France: killing. Together, of course — the game has co-op. Here's what that looks like in-action:
UPDATE: Read more about the co-op over on the official AC site. It's for 2-4 players and appears to be separate from the game's single-player. It seems to support some degree of multiplayer free-roaming: