Kill 20 enemies with the Chopper Gunner in a single run in "Return to Sender."

Finish the game in Normal Mode

Defeat 30 enemies with the Tau Sniper

Defeat 30 enemies with the SAS - 12

Kill 10 enemies with thrown-back grenades

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

Find 80 treasures

Defeat 30 enemies with the Mk-NDI

Defeat 30 enemies with the KAL 7

Defeat 30 enemies with the Arm Micro

Find 40 treasures

Make five enemies drop their grenade by shooting them