I'm going to do this quick because I am busy right now:
You need a program named "Lemon" from Tom BMX. But he wont let you download it unless you join his forum, so go here:
https://undeadmodding.com/
Then, go here:
http://tom-crowley.co.uk/downloads/
Download the Lemon program. Install it. Then, google for any of Tom's video tutorial's on how to use his tools.
Then go to the Blender site and download version 2.56 - DO NOT download the latest version! Install Blender. Then grab the COD exporter plugin files:
http://wiki.blender.org/index.php/Ex...all_of_Duty_IO
Install the plugins.
Run Lemon and start whatever version of COD you want to use. Use the program to get the animations you want. Then, open the .OBJ animation files in Blender. Then, export them using the COD xanim plugin.