Here is the full list of all 27 Tank Universal achievements.
256 Powershards collected.
512 Powershards collected.
64 Glyphs converted.
128 Glyphs collected.
128 kills achieved.
256 kills achieved.
Behemoth takedown achieved.
Behemoth takedown by minelaying.
Basic training passed.
All transports evacuated safely.
All upgrades + sub-upgrades installed.
Megaron Tank takedown achieved.
Completed the ride first time.
Bit Brain rank achieved.
Two Bit Unit rank achieved.
Can Read Write rank achieved.
ChipHead rank achieved.
Full Access rank achieved.
64 Bit Reaper rank achieved.
128 Bit Hardened rank achieved.
128 Bit Deathtank rank achieved.
128 Bit Overlord rank achieved.
256 Bit Supreme rank achieved.
Trooper of the Resistance medal awarded (easy difficulty).
Hero of the Resistance medal awarded (normal difficulty)..
Saviour of the Resistance medal awarded (hard difficulty)..