Kill 1 enemy.

Kill 2 enemies by using Mark& Execute.

Kill 1 enemy by using a headshot.

Perform a Melee kill link.

Perform 50 headshots.

Kill 5 enemies while using a Human Shield.

Complete 1 mission without using a gun.

Complete Mission I.

Complete Mission II.

Complete Mission III.

Complete Mission IV.

Complete Mission V.

Complete Mission VI.

Complete Mission VII.

Complete Mission VIII.

Complete Mission IX.

Complete Mission X.

Complete Mission XI.

Complete the game.

Complete the game in Splinter Cell level