Full list of all 20 Tiny Troopers achievements worth 200 gamerscore. It takes around 6-8 hours to unlock all of the achievements on Windows Phone.
Destroy 10 Towers
Kill 100 Enemies
Collect 25 Dog Tags
Complete the Tutorial
Use an Airstrike to Kill 3 Enemies At Once
Fully Upgrade You Squad
Use one of each heavy weapon on a single mission
Kill 50 Enemies with Grenades
Kill 50 Enemies with an Airstike
Kill 50 Enemies with Rockets
Loose the first mission
Destroy 10 Tanks
Loose 5 Troopers to Mines
Earn 200,000 Command Points
Order 10 items from HQ
Kill 50 Enemies with Machine Gunner
Kill 50 Enemies with Delta Force
Complete Chapter 1
Complete Chapter 2
Complete Chapter 3