Mission completion not registering

I’ve completed all of the campaigns on Legendary, but there are 6-7 missions that don’t register that they’ve been completed. This isn’t a huge problem because, let’s face it, they’re amazing campaigns, but I’m time-poor and don’t have the spare hours to redo entire missions on Legendary.

Does anyone know the cause of/fix for this? I don’t want to spend hours doing the missions again only to have them still not populate the completion.

Sometimes it takes a while for missions to register. I had the same problem with Halo 3, so give them some time :slight_smile:
Try replaying one of these missions on easy difficulty, it may unlock them!