| COSTUME | REQUIREMENT |
| Altair | Obtain the Assassin emblem. Beat the game with more than 50 knife kills, more than 50 CQC holds, and 25 or less alerts. |
| Civilian Disguise | Obtained at the beginning of Act 3. |
| Middle East Militia Disguise | Find in a locker inside the level Middle East: Militia Safe House. |
| South American Rebel Disguise | Save the rebels from death at the beginning of the level South America: Cove Valley Village. |
| Suit | Complete the entire game. |