Operation Quarterback
Not unlocked yetComplete Act 1
Operation Archangel
Not unlocked yetComplete Act 2
Left No Man Behind
Not unlocked yetComplete the game on Casual
My Rifle Is My Best Friend
Not unlocked yetComplete the game on Medium
Harvester Of Sorrow
Not unlocked yetComplete the game on Expert
Poking the Bush
Not unlocked yetCollect all secrets in Act 1
Keepsakes Of War
Not unlocked yetCollect all secrets in Act 2
In Search of Enlightenment
Not unlocked yetCollect all secrets in Act 3
Hazardous Materials
Not unlocked yetKill three or more enemies by shooting a grenade
Death's Scythe
Not unlocked yetTake 50 headshots in single player
Nerves Of Steel
Not unlocked yetAchieve 100% accuracy in any single player mission
Balls Of Steel
Not unlocked yetComplete any single player mission without using med kits, but taking damage
Say Hello To My Little Friend
Not unlocked yetKill 30 enemies using your sidearm
Psst, Don't Look Behind You
Not unlocked yetKill 15 enemies with a stealth kill
Kill With Still
Not unlocked yetKill 50 enemies while holding your breath
Distance Matters Not
Not unlocked yetKill 20 enemies from a distance of 600m or greater
Fisher King
Not unlocked yetKill 25 enemies using thermal or night vision goggles
Hangman's Knot
Not unlocked yetKill Major Vladic ("And Justice For All")
Nemesis
Not unlocked yetKill Maddox once and for all ("No Loose Ends")
Laugh This Off
Not unlocked yetIn the final duel with Maddox, kill him with the first shot ("No Loose Ends")
Back To School
Not unlocked yetKill all enemy snipers in Sniper Alley without being hit ("Ghosts of Sarajevo")
Guardian Angel
Not unlocked yetRescue the friendly ("From Out Of Nowhere")
Karma Chameleon
Not unlocked yetRetrieve your weapon without being detected ("Burning Bridges")
Worlds Apart
Not unlocked yetTake a successful shot from a distance of 1 km or greater