Here is the full list of all 61 War of the Human Tanks achievements.
Assemble 100 Tanks
Complete Episode 6: "The General from Hell"
Win a Battle Without Losing a Single Unit
Destroy 25 Enemy Units Without Seeing Them First
Complete Episode 5: "The Blue Sea and the New Tank"
Complete Episode 4: "Defeat the Conspiracy and Conquer Castle Matsumoto"
Achieve a Massive Victory
Complete Episode 3: "Attack the Armored Train!"
Complete Episode 2: "Imperial-Capital Conquering Regiment"
Complete Episode 1: "Daihon'ei Unfrozen"
Complete Episode 5: "Pass Satou's Test"
Complete Episode 7: "Under the Flag from the Past"
Complete Episode 8: "Annihilate All Stray Tanks"
Complete Episode 9: "Operation: White Wall"
Complete Episode 9: "Kurara Iikura Strikes Back"
Complete Episode 10: "Conquer the Northern Area"
Complete Episode 10: "The Meow-Meow Naval Battle"
Complete Episode 11: "Infiltrate the Nagoya Tower"
Complete Episode 12: "What the Sword is for"
Complete Episode 12: "The End of the Decisive Battle in Shinjuku"
Complete Episode 13: "Charge! Human Tanks"
Complete Episode 13: "Miou Liberation Front"
Complete Episode 13: "The Will to Fight"
Complete Episode 13: "The Daihon'ei Rebel Unit"
Defeat the Tank-Model Tank
Defeat the... Tank?
Defeat Mr. Cat
Defeat a Horde of Cats
Receive a Special Token
Develop the Infinite-Range Battery
Develop the Smart Radar
For Those Who Saw It All
Complete Barrage Research Line
Complete Assault Research Line
Complete Shock Research Line
Complete Scout Research Line
Complete Command Research Line
Complete Interceptor Research Line
Develop 30 Modules
Destroy 500 Enemy Tanks
Collect 1.000.000 Crates from Battles
Clear Fruit Bat Bonus Maps
Win the Battle for Yumishirogahara Before 5 Minutes Elapse (New Game only)
Overcome Megumi's Counterattack
Defeat Mr. Cat (New Game Only)
Achieve Three Wipeouts
Fight 50 Battles
Win 25 Massive Victories
Achieve Ten Speed Bonuses
Kill Five Enemy Tanks in a Single Attack
Kill All Enemies by Using the Same Unit
Kill at Least One Enemy Tank Using Each of Your Tanks in a Battle
Finish War of the Human Tanks
Equip a Command Tank with Curry and Cola
Win a Battle Using Only Heshiko
Achieve a Wipeout Using Only Shock Tank Attacks
Win a Battle Using Only Melee Attacks
Kill Five Enemy Units with a Scout Tank in a Single Battle
Win the Battle for Matsumoto Railway Without Using Battery Tanks (New Game Only)
Successfully Intercept 10 Attacks
Ensure a Safe Return for at Least 12 Wounded Units