I'm using gzdoom 4.3.3 and this works fine. If you're using a newer version, don't.
You can't use Vulkan, you have to use OpenGL.
You don't need all the stuff in the zip file. Just extract the pk3s in the data folder and load them.
The load order will be:
DSC 1.0
DSC material pack OR the low res material pack
DSC low res textures pack IF YOU WANT
DSC 1.0.1 patch
Rowsol
joined
This member has provided no bio about themself...