Legendary Campaign achievement bug

Hello,

So basically I completed all the levels on coop with a friend on legendary, however they got the achievement and I did not. Just wondering if this is being looked into, and is a known issue, as it is now saying I have not completed some certain levels at all, when I have.

This may have something to do with the other bug which keeps cropping up for me, where my spartan gear goes back to default, and all my loadouts, emblem, tag and sometimes level also change, but im wondering what caused this, and if there is/will be a fix.

Thanks

Tom

I have just looked over your stats and achievements, everything looks fine except for what you have stated. you probably have encountered some sort of bug.

Maybe you should run through a mission again on legendary and see if it changes anything. Or alternatively, play it through solo on legendary so you get both achievements at once.