Wrong disc with Black Ops 2

Technical issues when installing a new game on your PC is nothing out of the ordinary, but some {Call of Duty: Black Ops 2} players were in for a surprise when they popped in the second disc of the game. The surprise was that the second disc contained EA's {Mass Effect 2}.

This has been reported by PCGamesN who in turn refer to Reddit, Steam and YouTube.

The reason for the mix up is unknown, but we're likely looking at a screw up at a manufacturing facility. The extent of the issue also remains to be seen. Users who got {Mass Effect 2} on their second disc can use the activation key to download the full game over Steam, so they're not completely left in the dirt.