Here is the full list of all 43 War of the Human Tanks - there are ALTeR achievements.
Completed every achievement in War of the Human Tanks - ALTeR
That'd better be the last one...
The crew is back together
Reached the end of illusions
Defeated the Juggernaut of Void
Obtained the Orange
Settled Ruru into her natural inhabitat
Obtained the Nail Clipper
Defeated the strongest gymnastic formation
Defeated the Illusion System
It's rather cute than scary, though...
It's scarier than the enemy...
The lone assassin left no survivors
Meow?
Explored a world of illusion
Let your fists do the talking
Defeated the mightiest train of them all
Learned to Love the Bomb
Good for preventing hostile radiowaves... maybe?
Big, Bigger and...?
Completed episode 6 (Alternative)
Together, the two are unstoppable!
Half Human Tank
Gotta have all those helmets!
If only they wore helmets too...
Explored ancient(?) ruins
A fourth force has appeared...?
For Excellence in Ranged Combat
Enemy technology has been contained
It was over before it began
Answer: deep
Oh, yeah!
2.0.0.
Completed Episode 8
Completed episode 7
Completed episode 6.5
Completed episode 6
Completed episode 5
Completed episode 4
Completed episode 3
Completed episode 2
Completed episode 1
We won't forget your sacrifice