Costumes
Raiden's Costume Complete all of the tasks in the Animus 2.0 training mode.
Multiplayer Character Unlock
Gain the necessary requirements in order to unlock this character for multiplayer.

Unlockable How to Unlock
Hellequin obtain 40 uplay points.
Capes
Unlockable How to Unlock
Borgia Cape Collect all Borgia Flags
Auditore Cape Rebuild Rome
Medici Cape You need to get to level 30 on the "Assassin's Creed: Project Legacy" Facebook game
Venetian Cape You need to get to level 30 on the "Assassin's Creed: Project Legacy" Facebook game