Problem: So I have had the MCC since release and have completed every mission Halo CE-4 and ODST when released on solo legendary. But I noticed a good 5 months ago that for some reason the missions in Halo 3: The Ark, The Covenant, Cortana, and Halo say that I’ve completed it on Normal solo and legendary co-op. I thought that I guess a good 3 years ago I must of just skipped solo and did legendary co-op so I went through each of those 4 missions on legendary AGAIN to get that solo-legendary completion. And when I went in the menus to check it it still said I completed them on SOLO NORMAL.
When this happened I knew it was glitched and just knew I couldn’t do anything because the game is broken.
Even further proof this is a glitch: I was telling my friend about this and he said he had the same problem. He has like 3 missions from Halo 2 that aren’t registering. I know this as well because I DID THEM WITH HIM on co-op legendary. I remember going through that “Halo 2A will be shipped EXACTLY like it did 10 years ago” frustrating mechanic put in where if one person dies the whole game will revert back to checkpoint.
If anyone’s game isn’t registering certain mission completions post them here to backup the fixing of this glitch. If there is a support to fix this can someone provide it?