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