It does NOT work.
I did install Windows 8 X64 beta on a pc that did acept and play COD at a not to low graphic level and when I did change my OS to windows 8 x64 Steam had a little problem to install itself and COD does never launch itself.
Maybe with a x32 version maybe I shall try next week if no one trie before me. Sorry for this bad news.
Does now work download the fix as below.
http://forum.1cpublishing.eu/showthread.php?t=36078
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