I beat Halo ODST on legendary, I got some cool superintendent nameplates unlocked for that achievement which I was very proud of. However MCC glitched out and Now I’m not able to use those name plates any more 
you can see that picture I have the nameplate on but if I change it it will go away (which it has because of an update)
I really don’t feel like repeating halo ODST on that legendary difficulty again…