Here's something: http://www.gamasutra.com/view/news/39068/Behind_The_Numbers_MuchNeeded_Holiday_Cheer_From_November_Game_Sales.php
"Out of the total 8.9 million units of Modern Warfare 3 sold in November (a figure supplied by analyst firm Cowen) fewer than 100,000 were for the Wii, and even fewer were for Windows."
Launch month COD sales:
Modern Warfare 3 -- 8.9 million
Black Ops -- 8.0 million
Modern Warfare 2 -- 6.1 million
World At War -- 2.0 million
Modern Warfare -- 2.0 million
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"When I was a young man, I had liberty, but I did not see it. I had time, but I did not know it."