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