The current sources won't work with NetRadiant nor GTKR 1.5. BUT I've managed to turn all the sources into openable .map files. At least for NetRadiant, which supports 1.4 filetype.
I'll be uploading a texturized oa_e1m5 later. (It's just a test, I'm not going to submitting it)http://www.onykage.com/files/armageddonman/q1sources-netradiant.zip
Here's what I did:
- Open the map in QuArK, save it as qkm, and then resave it as .map.
- Open the resultant .map file from above in GTKRadiant 1.4, and resave it as .map.