MagicalMoses: Okay I will send out a few emails and post on here what happens. Give me a week!
Designer of MF here...
Here's what I can tell you at this point:
- There is a level editor called Cartographer, but it was never made with end-users in mind. The game was also not designed to be extensible without recompiling, which really makes it difficult to support custom user maps. Any map made would have to replace one of the game's existing maps. As such, to truly support custom maps some serious work on the game itself would need to be done.
- The version released on GOG, as far as I know, is the same binaries that came on the original CD's with a wrapper placed around them to make it work on current Windows. So, no changes from the original release. This is because at the time no source code was known to exist.
- Some source code has since been found, but it is a backup made about a year before release, which is likely not feature complete and probably full of bugs, too. Tapes of the gold master code have also been found, but it's an ongoing and expensive process to see if the files can be restored. Nightdive owns the rights to the game now, so they'll have to decide how much time they can commit to any new work on the game.
I'll continue to update the forum with any news, but keep in mind I'm not affiliated with Nightdive at all, so I don't know what they've got planned nor am I informed of decisions they make.