Legendary Master Chief Armour, HELP

I know there are other threads out there that answer this, but my problems a tad different. I beat Halo 4 on legendary difficulty last week. When it didn’t go through I went on too the service record and saw I completed Midnight offline (xbox live) I beat Midnight today on Xbox live, I have the commendation and everything, but I dont have the armor or anything, please tell me what I did wrong.

You service record shows for me that mission 5 has still to be completed on legendary, it’s only showing normal completion for me. You could try running that level once more to see if it unlocks

Well it appears you should have it now. Your service record shows you’ve beaten Halo 4 on legendary. Kudos!