So i am missing achievements from cod black ops.on my xbox360 i got one for completing the campaign but not for anything else i did during the campaign. not even finishing the missions. I have contacted Activision and they were unable to help me.
I have looked at my achievements at xbox.com and does not show them. so i do know that they are truly missing and its not just my console
i completed the campaign on 8/9/2014.
I have cleared system cache
rerolled system update
deleted and re-downloaded my game and profile
tried replaying the campaign
also moving my profile to a different storage device