50 headshots delivered.
100 headshots delivered.
Finished game on Easy difficulty.
Finished game on Normal difficulty.
Finished game on Hard difficulty.
Act I Completed.
Act II Completed.
Act III Completed.
Act IV Completed.
Collected all secrets.
15 enemies killed in concentration mode.
Enemy killed by the wall.
10 enemies killed with throwing knives.
30 enemies killed with browning gun.
2 enemies killed with one grenade.
2 enemies killed with one shot.
All enemies on riverside in "Weaken The Regime" level killed.
250 people killed with pistol.(Multiplayer)
250 people killed with sniper rifle.(Multiplayer)
500 people killed with sniper rifle.(Multiplayer)
2000 people killed.(Multiplayer)
50 rounds won.(Multiplayer)
10 birds killed.
5 High-Voltage cable lines broken.