Here is the full list of all 20 Tiny Troopers 2: Special Ops (Windows) achievements worth 200 gamerscore.
You have destroyed 30 tanks.
Got a full squad in the last zombie map.
You have killed 2,000 enemies.
You have killed 50 enemies with airstrikes.
You have had at least 3,000,000 Command Points.
Your machine gunner has killed 50 enemies.
You have ordered 50 packages from HQ.
You have completed Operation 3.
You have completed Operation 2.
You have upgraded one upgrade category to the maximum.
You have used an airstrike to kill 3 enemies.
You have used each heavy weapon in one mission.
You have lost 5 troopers to mines.
You have failed the first mission.
You have used 5 different uniforms in battle.
Unlocked the first gated area.
You have completed Operation 1.
You have completed the tutorial.
You have collected 1,000 Dog Tags.
Killed 200 plague chickens.