Find 25% of all Collectibles.

Complete Act 1 in one way.

Finish the game in Hard Mode

Finish the game in Easy Mode

Defeat 30 enemies with the M9

Defeat ten enemies using hand-to-hand combat on the back of the convoy trucks

Defeat 30 enemies with the KAL 7

Defeat 20 enemies by blind-firing while in cover (without aiming with L1/R1)

Defeat five enemies in a row using stealth attacks

Defeat 50 enemies with hand-to-hand combat

Find one treasure

Disarmed the bomb in under 20 seconds in The Eleventh Hour

Completed the mission without using the fire extinguisher in Fire From The Sky