Artifact Assault

Artifact Assault is one of the multiplayer modes in Assassin's Creed: Revelations. It is based on the popular multiplayer mode Capture the Flag. The first team to get the number of artifacts or has the most by the end of the game wins.

Description
In the game mode, the player must enter the territory of their enemies and capture their flag, before returning to their own camp to drop it off. Artifact Assault can be played in teams of three or four. The map the mode is played on is divided into two, and players in their own territory are hunters, with the ability to kill. However, when players are in their enemy's territory, they become the hunted and can only stun.

Gameplay of the mode was released at E3.

Source

 * IGN