Since /idgames is currently down, here is the download link:
http://fragmare.mindrec.com/amath.zip
A map pack containing 11 highly polished and thoroughly tested duel maps, made for the original "vanilla" doom2.exe.
This WAD strives to create an oldschool dueling experience while pushing the vanilla engine to its limit. The end result is a map pack that runs on any and all ports of DOOM II (including the original DOS doom2.exe), but looks and plays like something much more contemporary.
There should be something here for everybody to enjoy. That is to say, everyone should be able to find at least one map in this WAD that they like to duel on. There is quite a bit of visual and gameplay variety between all eleven of these maps.
Now for some screenshots:





















