since everyone is complaining about having there rank reset i always hoped it wouldnt be me, logged on earlier and in the mode select it told me i wasnt signed in, even tho i was. so i went back out and re signed in, had a bit of a panic when i checked my stats, campaign collectable and mutators have all vanished. luckily my ribbons, medals and rank are still there.
if i'd lost my medals i think gears may have floown into a wall, am working on backing up my stats now. if i lose it all i doubt ill go for seriously again, took a long time to get all my medals.