Okay its pretty easy if you follow these steps:
1. Go to C:\Users\jbavd_000\AppData\Local\Activision\CoDWaW\mods
2. Find your map and copy it
3. Create a zip of it
4. Open UGX Installation Creator
5. Press on the "Open..." button when you are in the UGX Installtion Creator
6. If it got loaded than you are be able to click on the button "Generate" so click it xD
7. Wait until it's finished and you got your .exe so people can Install your map
8. Create an account on a website to put files in it and create links to give people like dropbox
9. Put the link on a website so people can download it
10. Enjoy
I hope this helped ^^ If you have more question or dont understand something about it then feel free to add me on skype/steam
Btw welcome to ugx, Im new here too