I see people have really cared about your problem here :/
Can't someone from Call Of Duty at least post a reply here? Jeez
BRLCV1, maybe can you try to do the following, just taking guesses;
1) Try to update or reinstall DirectX.
2) Run dxdiag and confirm it can do all the tests OK (so we know if it's the game or your direct X)
3) Run the 'verify files' command from Steam on the game; described here https://support.steampowered.com/kb_article.php?ref=2037-QEUH-3335
If all that doesn't help, can you describe the problem in some further details? Maybe the exact error or a screenshot?
Thanks and hope we can get it fixed soon!