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