Hello,
I've got somewhat of a tutorial for you today!
If you are making a map for the Raid Mapping Contest, or just making a map in general I've got the perfect tutorial for you!
The first thing you are going to want to do is the download the "deauthrun_sxk" mod from HERE. (VirusTotal)
Once you have done that, you are going to want to take it to your COD4 Mods folder.
You can do that like so,
If you have the game on Steam, right click the game and select "Properties"
Then select "Browse local files..."
Now make your way to the "Mods" folder and unzip the file into the "Mods" folder.
You will either need WinRAR or 7-Zip, or if you're on Windows 10 Latest there is a built in file extractor.