Supreme Commander 2
47 Achievements
1,000
40-50h
Xbox 360
Xbox One
Xbox Series
Score Hoarder
Get a complete campaign score over 150,000
50
How to unlock the Score Hoarder achievement in Supreme Commander 2 - Definitive Guide
If you play through the campaign and aim for every primary and secondary objective, you should hit this way before you finish the 3 factions. I unlocked this on the 3rd Aeon mission after completing the UAE Campaign on hard.
You get this after Mission 5 on Hard. All you have to do is completing all objectives in each mission and researching most/all of the Tech Tree and you get a score of ~32000 for each mission.