campaign data gone, anyway to recover it?

Ilogged on today and for some reason all my campaign data is gone, my armor was reset to default(still have all my unlocks, level etc) my loadouts where reset which thats not that big of a deal as thats going to take all of 5 minutes to fix, as for spartan ops, it showed the loadup video but it kept all my progress there, what im bummed out about is the campaign, on waypoint it shows all my progress. in game is says that none of them are completed, and i cant do any mission besides the first. also says I havent found any terminals, which isnt true.

tl;dr
campaign data gone, is there a way to recover it?

i know everyones busy with checking there emails and raging over the fact they havent gotten codes but itd be cool if a 343 employee would explain why this happens, its not a huge problem, but it still has happened to other people.

also wondering if i get a friend to load the final co-op mission i need on heroic, if ill still get the achievement?

also having trouble with the campaign, if you check my achievements i have lone wolf legend achievement but if you check my stats it says i didnt complete it wtf

what bothers me is, we have the achievements… why wont it let me play the missions without unlocking them all again, not to say the campaign isnt fantastic, but playing it practically a 3rd time on easy just to unlock them all again is a waste of time