So I want to submit my map for testing, and I've gone through every step, but I can't figure out how to get the map download link for the map itself. Any help would be appreciated.
Go to your map's page on TF2Maps, right-click on the big blue "Download Now" button, and select "Copy link". That will copy the map's download link. Then use the paste function (right-click > Paste or CTRL + V) to insert the link into your textbox of choice.