You Upgraded One Upgrade Category to the Max

You Used Airstrike to Kill 3 Enemies At Once

You Used one of each heavy weapon during one mission

You Have Killed 50 Enemies with Grenades

You Have Killed 50 Enemies with Rockets

You Have Killed 50 Enemies with Airstrike

You failed the first mission

You have destroyed 10 Towers

You have destroyed 10 Tanks

You Completed the Tutorial

You have Killed 100 Enemies

You have Lost 5 Troopers to Mines

You have Collected 25 Dog Tags

You had at least 500,000 Command Points

You have Ordered 10 Packages from HQ

Your Machine Gunner has Killed 50 Enemies

You have completed Operation 1

Your Delta Force has Killed 50 Enemies

You have completed Operation 2

You have completed Operation 3

Killed 100 plague chickens

Unlocked the first gated area

Got a full squad in last Zombie map

Collected 10 Medicrates

You have used 5 different uniforms in battle

Revived a fallen squad members 10 times