The beta for Assassin's Creed: Revelations Multiplayer will be a PS3 timed exclusive, running from September 3 to the 11th.
Plus and Uplay members will have access to nine characters (The Sentinel, The Vanguard, The Guardian, The Vizier, The Thespian, The Deacon, The Bombardier, The Trickster and The Champion), three maps (Knight's Hospital, Antioch, Constantinople) and sample four of the playable modes (Wanted, Manhunt, and two new modes, Deathmatch , and Artifact Assault) to appear in the full game.
Assassin's Creed: Revelations is out November 15.