Yesterday, I moved my profile from my hard drive to my USB. I had waited until my Xbox was completely off. I had removed the USB and went to my friends house. I inserted the USB into my friends Xbox and it said my profile was corrupted. It still let me get online and speak to people in parties. Then, my friend, two of our friends online, and I proceeded to complete the Easter egg on the Call of Duty: Black Ops map Shangri-La. We spent four hours completing the Easter egg with CoMiiC Inferno, CoMiiC Toxicity, and FFE x Tiger and at the end, everyone except for me got the achievement. We were online so I know it can't be just his console. Also I'm still at his house and we just got the moon Easter Egg if that helps. I was just wondering if there was anyone I can E-mail or anything I can do get this achievement. I was also wondering if there was anyway that Xbox or Treyarch could trace my games to prove myself. My gamertag is CoMiiC Overdose and my E-mail is *** Email address is removed for privacy ***. Message me with any help information.