Warcraft II: Tides of Darkness - Add-on maps
Here are some files for Warcraft II.
Enormous uncurated pile of PUDs
Here is a big archive of every PUD file I have managed to find after a deep dive into old websites, CD compilations, archive.org mirrors, etc. This only marginally organized, and there are certainly duplicate files. There are almost certainly misplaced non-map files and other junk as well. I can no longer be bothered to make a cleaned up archive, so if you want to grab a big pack of "everything", here it is. Have fun.