Today Wall Worm was updated with RMF export support.
Also, the exporter can now compile MAP files directly into BSP.
@SourceSkyBoxer/@Rimrook : Thanks for sharing your input. Everyone must choose what fits them best.
In terms of using Max as a pipeline for both Goldsource/Source, you can do all modeling and level design directly in one editor (as well as material/texture creation). That is really my whole purpose for developing Wall Worm. I also enjoy using Substance, and you can actually use Substance directly inside Max as well as export your shaders directly into Source/Goldsource inside the WW tools/ui. For anyone interested in learning about some of that, here is a free book on using Max as your Source level editor: Hammered to the Max
. Although it is focused on Source, most of the info is applicable to Goldsource as well.