Firstly I paid $150 AUD for this game when I simply could of paid 60, purely because I love the series. Imagine my disappointment after hours of solo legendary to realise that none of my completion achievements would unlock, not even the one for 13 skulls. I finished my first legendary run last week, and have repeated it again over the last few days and still no achievements, so this is certainly an error with the game. Even check my service record here on waypoint, it shows my completion but no achievements!!!
i tried a hard reset and everything else advised in other issues like this and nothing, please fix this pathetic issue immediately.
If anyone else has any other ideas that don’t revolve around playing the missions a third time on legendary let me know