I have completed all halo 4 missions on legendary however the achievement progress still shows 75% for the lone wolf legend and 87% for the other halo 4 completion achievements. The composer achievement also did not unlock straight away and had to re complete it on easy this unlocked the achievement for campaign on easy but not the rest. I did save and quit on both the composer and requiem due to work and it gave me a carnage report as if I was two different players despite being signed in on the same account upon completion while giving me the achievements for completing a mission co op legendary. Please fix this as I do not want to have to do those missions on legendary solo again. Oh and i had competitive timing on for this.
i remember that being an issue on halo 4. you’ll probably have to redo it. it happened to me back then
halo