Finish the game on Easy difficulty.
Finish the game on Normal difficulty.
Complete Act IV.
Deliver 100 headshots.
Complete Act II.
Complete Act III.
Kill 2 enemies with one shot.
Deliver 50 headshots.
Complete Act I.
Shoot an enemy through a wall.
Kill 2 enemies with one grenade.
Kill all enemies attacking your pontoon from the riverside on "Weaken The Regime" level.
Kill 15 enemies using concentration mode.
Finish the game on Hard difficulty.
Collect all secrets.
Kill 10 enemies with throwing knives.
Kill a total of 30 enemies with Browning gun.
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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