Find Rojas in the Favelas.

Kill 2 enemies with a single bullet in Single Player or Special Ops.

Kill at least 3 enemies with a single shot from a grenade launcher in Single Player or Special Ops.

Platinum

Defeat 200 enemies with the GAU - 19

Finish the game in Crushing Mode

Defeat 50 enemies with the M32 - Hammer

Defeat 30 enemies with the Moss - 12

Defeat 50 enemies with the Micro - 9mm

Finish the game in Easy Mode

Finish the game in Hard Mode

Find all 100 treasures

Find 90 treasures