After being marooned, leave everyone alive until the Treasury

Make 10 enemies drop their grenades

Just prior to City Chase, stand perfectly still for 30 seconds (stage demo fail)

Get through all 3 Axe Fort trials without resetting any boards

Perform 10 combo partner takedowns

Stealth take-down 10 armored enemies with melee by first removing their helmets without being detected

Destroy a vehicle in Chapter 9 with an explosive

Defeat 20 enemies firing from-the-hip

Destroy the helicopter without defeating any other enemies

Defeat 4 enemies with one C4 detonation

Defeat enemies with the vehicle, long-gun, melee, and grenade, in that order, in 20 seconds

Defeat 20 enemies with C4

Play in the ocean near the sunken ship