Score a 10x multiplier in a Story level

Change your costume

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

Finish the game in Normal Mode

Defeat 30 enemies with the PAK-80

Defeat 100 enemies with headshots

Defeat 20 enemies by shooting from the hip (without aiming with L1/R1)

Defeat 20 enemies with gunfire by aiming while hanging

Defeat 30 enemies with the KAL 7

Make five enemies drop their grenade by shooting them

Defeat five enemies in a row using stealth attacks

Defeat 50 enemies with hand-to-hand combat