Protected Chaffin from the soldiers in the street in Operation Swordbreaker

Finish the single player campaign on any difficulty

Single Player: Kill 20 enemies with the Microwave cannon

Re-route the power in Eye of the Storm without being detected

Defend Central Station

Reach the Hargreave-Rasch building

Infiltrate the alien hive

Single Player: Stealth kill 25 enemies

Assimilate alien tissue at the crash site

Single Player: Kill 4 enemies in a row with headshots

Finish the game in Easy Mode

Defeat 100 enemies with headshots

Defeat 20 enemies with the Pistole