I made this page to help me as much as others who are interested in 3d max 2.5 and creating Starsiege shapes.
How to use blender 2.8 and export to 3d max 2.5. You need 3dmax 2.5 (Found on this site) also 3d exploration found at http://www.starsiegerestoration.com/SS/STARSIEGE%20FILES%20AND%20DOWNLOADS/PROGRAMS/3D%20EXPLORER.zip
inside the zip you’ll find a .reg file you’ll need to type in regedit in your search bar. Go to file and import and import this file to get it to work on windows 10 etc…
How to copy objects correctly in 3d max 2.5 so they are not messed up and deformed.