http://www.xbox360achievements.org/forum/showthread.php?t=416582 >Last night, I got back online with the game, downloaded the Title Update, and played through all levels online with my buddy and got both online achievements. >I DID NOT have the DLC. > >He did and had already gotten the achievements for it. When we played through the online levels, his achievement DID NOT pop. >He deleted the DLC and Title Update, then re-downloaded the Title and we played through the levels again. Still no achievement. > >So… if you have not completed the main/original game, DO NOT TOUCH THE DLC!! 本体とアップデートとDLC消して本体だけDLし直してもダメって報告 まあこれで回避出来るなら問題にされてない