Wildfire mode:
Successfully complete the City Of Walkways 2 level on the "Agent" difficulty setting with a time less than 3:40.
Air Raid level:
Successfully complete the Masquerade level on the "Agent" difficulty" setting with a time less than 3:15 to unlock the Air Raid multi-player level.
Castle level:
Successfully complete the Subway level on the "Agent" difficulty setting with a time less than 2:15 to unlock the Castle multi-player level.
Team King Of The Hill level:
Successfully complete the King's Ransom level on the "Agent" difficulty setting with a time less than 2:20 to unlock the Team King Of The Hill multi-player level.
Sky Rail level:
Successfully complete the Cold Reception level on the "Secret Agent" difficulty setting with a time less than 3:15 to unlock the Sky Rail multi-player level.
Civilian skins:
Successfully complete the City Of Walkways 1 level on the "Agent" difficulty setting with a time less than 3:35.
Soldier skins:
Successfully complete the Midnight Departure level on the "Agent" difficulty setting with a time less than 3:05.
Suit skins:
Successfully complete the Curiour level on the "Secret Agent" difficulty setting with a time less than 2:00.
Covert skins:
Successfully complete the City Of Walkways level on the "Secret Agent" difficulty setting with a time less than 3:45.
Scientist skins:
Successfully complete the Masquerade level on the "00 Agent" difficulty setting with a time less than 4:20.
Contemporary skins:
Successfully complete the game on the "Agent" difficulty setting to unlock Alec Trevlyan (006), Wai Lin, Max Zorin, May Day, and Christmas Jones (dress).