Complete Act III.
Kill a total of 30 enemies with Browning gun.
Deliver 100 headshots.
Complete Act II.
Kill 2 enemies with one shot.
Deliver 50 headshots.
Kill all enemies attacking your pontoon from the riverside on "Weaken The Regime" level.
Complete Act I.
Kill 2 enemies with one grenade.
Kill 15 enemies using concentration mode.
Shoot an enemy through a wall.
Finish the game on Easy difficulty.
Finish the game on Normal difficulty.
Finish the game on Hard difficulty.
Complete Act IV.
Collect all secrets.
Kill 10 enemies with throwing knives.
Kill 250 people using pistol.(Multiplayer)
Kill 250 people using sniper rifle.(Multiplayer)
Kill 500 people using sniper rifle.(Multiplayer)
Kill 2000 people.(Multiplayer)
Win 50 rounds playing online.(Multiplayer)
Kill 10 birds.
Shoot 5 cable lines using sniper rifles.
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