Complete a Round in Co-Op Without Either Player Taking Damage

Complete a Round with a Kills-per-minute rate of 100 or more

Survive to Round 5

Collect All The Loot In Any Mission

Help Your Country To Clear The Virus Infection

Fully Upgrade A Single Stat Of Any Weapon In Campaign Mode

Destroy 500 Vehicles

Perform 500 Headshots

Complete A Mission Without Receiving Any Damage

Complete A Mission In Co-Op Mode (Any Difficulty Level)

Complete Mission 5 (Any Difficulty Level)

Complete A Mission Without Dying

Complete Mission 10 (Any Difficulty Level)