I don't have the time right now, but i can give some general hints:
- Store Unity Level in TextualSceneFormat which is actually just JSON
- Don't create WMP file but $$M which is a "plain text" variant of WMP that does not support groups
- Think about how Behaviours should translate to Actions, a gamestudio object can only have one action.
- Don't use Unity or Gamestudio for level translation
- Think about an automated translation of model files to MDL with Assimp and MED automation
Would be cool to see a full-/semiautomated solution on GitHub
Regards
Felix