on mac?
go to gog.com and buy a doom2 copy, then forget about it
search for doom2.wad and get it from the archive
get gzdoom 4.x
mkdir -r ~/Library/Application Support/GZDoom && open ~/Library/Application Support/GZDoom
put the doom2.wad in that folder
download the myhouse.pk3 from the google drive and drop it on the gzdoom app
enjoy!