Quite recently I completed the Halo 4 campaign, solo on legendary difficulty. I then went on to equip the new armor I thought I had received for doing so but it wasn’t unlocked. I even have both the achievements for completing it and was also online on xbox live when I did so.
Does anybody know what or why this is and if so, can anyone help me out?
Check your commendations, there’s a good chance you might have to do one or two of the missions again.
The same thing happened to me when the game was first released. I completed it on Legendary, got the achivements and everything, but it never recorded me as having beat Infinity on Legendary. So I had to do it all over again.
Check the commendations for the Campaign and see which missions aren’t complete on there, and double check your armoury just in case you missed it.