i have lost all my campaign history

Games Other Halo
1

hey guys i was wondering if anyone knew whats happened, so i had played the halo reach campaign alot, i had completed it on legendary in multiplayer and half way through beating it on legendary solo, however when i clicked on it today it said i haven’t even started the campaign and that im still on noble acutal. i have found this really annoying as i had put days into the campaign and trying to get the achivement " a monument to all your sins " and to now have it all disappear, can anyone please help me or at least explain what has happened

thanks

2

This happened to me a while back, and apparently has happened to alot of people. Unfortunately, nothing you can do about it.

3

This happened to me too, but fortunately I had already completed it on Legendary solo. After my progress was deleted, I just went through it again (on Heroic, because it rocks!)and finished it after a couple days. Sorry that you lost your progress, I couldn’t find any solution to the problem.

4

Ya this happens alot, my friend had it happen to him 2 times. You have to redo the missions.