Once I have a better understanding of your topic, I'll do my best to create a solid article for you.

Try to verify the authenticity and safety of any files before downloading them. Some files might be malicious or contain viruses.

MW2 is available for download on Battle.net and Steam for PC, as well as the PlayStation and Xbox storefronts.

Open the exclusive archive. You should see a folder hierarchy like:

In MW2 modding (particularly for the original 2009 title or its remastered/client versions like IW4M), files are often distributed with specific naming conventions for private servers or mod menus:

C:\Program Files (x86)\Steam\steamapps\common\Call of Duty Modern Warfare 2 Config Files: