Here you see a Dawn of Darkness ingame .wal 256 color texture and a .png image comparison. I have made the texture first with
Wood Workshop, in conjunction with Paint Shop Pro 7 and Wally. Below is the link to the program.
If you are not using Jasc Paint Shop pro 7, go below, for a tutorial in creating a .pal file for making/transparent textures for Quake 2, in Gimp and converting them as .wal files with Wally : q2 palette textures
My Quake 2 .pal file i converted using Jasc Paint Shop pro 7, so you can make your own textures from scratch or apply the .pal file to a image : Quake 2 .pal file
You can get Jasc Paint Shop pro 7 from here : oldversion
I will make models (buildings etc.) and post them here as .dae files, in the maps me and my brother will make as prefabs, in the blog button above. The .dae models must be exported to .map files (which in turn are brushes),
which QuArK editor works with. The above models are just examples i made. Feel free to get inspired by them.