Complete Mission 3 (Any Difficulty Level)

Complete Mission 2 (Any Difficulty Level)

Fully Upgrade A Single Stat Of Any Weapon In Campaign Mode

Complete Mission 1 (Any Difficulty Level)

Collect An Armor Piece

Finish the Game on Normal Without Changing the Difficulty

Kill 50 Enemies with the M4

Kill 20 Enemies by Shooting from the Hip (without aiming)

Kill 50 Enemies with the 92FS - 9mm

Kill 5 Enemies with Brutal Combo

Kill 100 Enemies with Headshots

Find the Strange Relic