Custom Level Geometry
In the notes for mission editor Kirk Baum mentioned Outwars level geometry meshes are modified MultiGen Creator files. Creator uses a file format called OpenFlight. We need an OpenFlight plugin for Blender or 3DSMax in order to make custom levels.
This is something that has eluded the Outwars community thus far but I don't think anyone really put much effort into it.
First step: acquire a valid OpenFlight mesh file of something simple e.g. a cube and compare it to the Outwars mesh file. It may be that newer versions of OpenFlight differ and that we would need a vintage OpenFlight file. Hopefully not.