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[Locked] Achievement not recieved


I've completed all of Halo 4 on legendary in the mcc and did not get the achievement. In game it says I completed every mission on legendary. My service record says that I did not complete shutdown or midnight. Will these achievements pop over time or do I need to redo these missions?
Try giving it a day or two. If nothing works, then run through Shutdown and Midnight on Easy and it should “push” your Legendary run through and unlock the achievements.

Also, for future posts, you should post MCC stuff in the MCC forums. This one is meant for the original release.
This happens a lot with achievements on xbox, happened to me on MCC. They should update how achievements are registered and displayed imo.
There is a pinned achievements thread at the top of the MCC forums, you should post your issues there