I just started level editing for the first time a couple days ago, and now I'm addicted to it. I'm still a beginner, but I managed to fork out two maps for Doom 2. One is called Blood Arena and is a replacement for MAP01, and the other, Relay Station, replaces MAP07. Relay Station is meant to be a 'first level' of sorts, I don't know why I chose MAP07 for it, so just warp.
Check them out here: https://sourceforge.net/projects/gravew ... /GraveWad/
The filename is 'sample.wad'
I would love to hear feedback/critique/etc =D>