http://www.blackops2forum.com/archive/index.php/t-9713.html seems to note different 3D options to try.
I just rented Call of Duty Black Ops 2 for the Xbox 360 and hooked it up to my 60PM6700 LG tv via HDMI and wanted to experience my first 3d game. I have the settings on the xbox for 1080P and enabled 3d tv settings. When I get into the game, it doesn't recognize the tv as 3d and doesn't give any active 3d options. I do have 3d turned on via the remote on the tv.
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