Yes it is possible. I have written a program that converts maps from BF42 to BGF. That won't be a lot of use to most people until BGF is released, of course, so I have made available a tool that converts the heightmap:
http://forum.opkmod.com/thread.php?threadid=7407
The basic procedure is as follows:
- Create a new BF2 map.
- Use the tool to convert the heightmap.
- Copy across the textures.
- Recreate the control points, static objects, soldier spawns and vehicle spawns (our main converter does all this, but of course the WW2 vehicles and buildings won't be available to you until we release, so just do it manually with BF2 objects for now).
Here's Kursk automatically converted (including vegetation):
http://www.bgfmod.com/index.php?lng=eng&am...news&page=9
Exactly what the legal situation is if you want to release the map to the public I'm not sure, and we haven't made a final decision on releasing the BF42 maps.