Strategic Genius achievement won't unlock

[Fwapper]

I've completed three separate campaigns on hard now (and stuck around right to the final year) but the achievement hasn't unlocked. Has anyone managed to get this achievement and better still, has an idea why they got it and I didn't? :P

[BeeSting]

I was not aware of such achievement unlocking anything. But, does it take a genius to achieve what you achieved in ETW? are you sure you are playing the same
game?

[Fwapper]

lol - it's their terminology not mine: http://steamcommunity.com/id/Fwapper/stats/EmpireTotalWar

"Strategic Genius

Complete the main campaign game on the hard difficulty setting."