Complete Chapter 1 on any difficulty setting

Platinum

Kill five enemies in a row with a single punch, after softening them up with gunfire

Achieved 00 Status.

In Sink Hole, kill the helicopter pilot while the gunners are still alive.

Kill five enemies with a single punch, after softening them up with gunfire

Finish the game in Hard Mode

Kill 10 enemies with grenades by aiming while hanging from a ledge

Kill three enemies with one explosion

Kill 20 enemies with Mk-NDI grenades

Kill 50 enemies with the AK-47

Find 55 treasures