Naos

Operation Quarterback

Complete Act 1

Operation Archangel

Complete Act 2

Left No Man Behind

Complete the game on Casual

My Rifle Is My Best Friend

Complete the game on Medium

Harvester Of Sorrow

Complete the game on Expert

Poking the Bush

Collect all secrets in Act 1

Keepsakes Of War

Collect all secrets in Act 2

In Search of Enlightenment

Collect all secrets in Act 3

Hazardous Materials

Kill three or more enemies by shooting a grenade

Death's Scythe

Take 50 headshots in single player

Nerves Of Steel

Achieve 100% accuracy in any single player mission

Balls Of Steel

Complete any single player mission without using med kits, but taking damage

Say Hello To My Little Friend

Kill 30 enemies using your sidearm

Psst, Don't Look Behind You

Kill 15 enemies with a stealth kill

Kill With Still

Kill 50 enemies while holding your breath

Distance Matters Not

Kill 20 enemies from a distance of 600m or greater

Fisher King

Kill 25 enemies using thermal or night vision goggles

Hangman's Knot

Nemesis

Laugh This Off

Back To School

Guardian Angel

Karma Chameleon

Worlds Apart

Take a successful shot from a distance of 1 km or greater

Solid Sandman

Bullets Can't Hurt Me

Complete any act without using medkits

I Never Bleed

Complete the Campaign using max one medkit per mission

Bloodstreak

Kill 25 opponents in multiplayer

Pure Ownage

Kill 50 opponents in multiplayer

The Sniper Elite

Kill 100 opponents in multiplayer

Kill That F**ing Band!

Take 25 headshots in multiplayer

Blood And Tears

Take 50 headshots in multiplayer

Unhappy Camper

Kill 10 opponents in multiplayer using your sidearm

U Can't Touch This

Win 5 rounds in a row in Team Deathmatch

Wrath Child

Win 10 Team Deathmatch rounds

Death Dealer

Win 25 Team Deathmatch rounds

Everything But The Kitchen Sink

In one multiplayer round kill an opponent with a sniper rifle, sidearm and melee attack

World Warrior

Participate in any multiplayer match