So i know H5 is out and most everybody is on that but i recently went back to Mcc to finish up missions on legendary to get my helmet for H5 when i noticed the last level i played days ago(Gravemind)that i had stoped on at the very begining of the level registered as completed on legendary and i know i didnt complete gravemind on legendary by myself but it says i did. I checked my achivement progress for legend and counted all my remaining levels out that i needed to find out that yes it even recorded in my achivement progress as well. But i shrugged it off and said whatever then the very next level Uprising i played and beat it, next level starts (High charity) i save&quit and what do you know now i also have it marked as complete and marked in my progress for legend achivement. Let me just say im not complaining about this one bit, heck it saved me from having to do gravemind and high charity two of the worst on legendary in my opinion. But im just wondering if anyone else has noticed/experinced this glitch and if so if they know how its triggered or what causes it. Iv tryed just playing levels saving&quiting, getting a few kills then S&Q’ing, start level revert then S&Q and i haven’t been able to get anything diffinitve. Anybody got any ideas?