Some unlucky customers who purchased Call of Duty Black Ops II (BLOPS2) were given an unexpected surprise when they went to install it. Some people’s second disc is actually a copy of disc number 2 of Mass Effect 2. Source, Source, Source. It doesn’t match the normal disc 2 of Mass Effect 2 so there’s some speculation that it’s actually part of a remastered Mass Effect Trilogy. Most likely this was the cause of a disc printing error at whatever disc plant they use. COD and Mass Effect have different publishers so the only place this could have occurred was during disc stamping.
In a funny response, Bioware is giving away a copy of Mass Effect 2 to customers who were plagued with this issue. Better hurry though because they’re only taking the first 50 entries! (Probably already all gone…)