Here is the full list of all 25 Z achievements. It takes around 5-6 hours to unlock all of the achievements on Windows.
Pyros burn and burn some more
Lasers can cut through anything
Howitzer: Strong defence against all attackers
Mobile Missile, why fire one when you can fire three?
A.P.C. is a deadly Troop Transport
Double Missile Launchers are an awesome defence against everything.
Single player game completed
City World conquered
Build a Sniper, runs fast and shoots from a long range
Jungle World conquered
Arctic World conquered
Heavy Tanks are slow but very powerful
100 Territories captured
Volcanic World conquered
Medium Tanks are great all purpose vehicle
Build a Tough and launch a deadly rocket attack
Gun Turret: Defence against light armour
Desert World conquered
Build a Psycho, good fighters capable of rapid firing
Gattling gun use this against infantry
Light Tanks are fast and deadly. Avoid big guns
10 Territories have been captured
Jeep are fast moving but easy to kill
Completed a battle without any losses
Built a Grunt, grab those grenades