Here is the full list of all 27 Tank Universal achievements.
128 Bit Deathtank rank achieved.
128 Bit Hardened rank achieved.
512 Powershards collected.
64 Bit Reaper rank achieved.
128 Glyphs collected.
Full Access rank achieved.
Megaron Tank takedown achieved.
ChipHead rank achieved.
64 Glyphs converted.
Can Read Write rank achieved.
256 kills achieved.
256 Powershards collected.
Behemoth takedown achieved.
128 kills achieved.
Basic training passed.
Two Bit Unit rank achieved.
Bit Brain rank achieved.
Behemoth takedown by minelaying.
All transports evacuated safely.
All upgrades + sub-upgrades installed.
Nuke launched.
Completed the ride first time.
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)..