Is there some kind of script or future option to automatically assign bone/armature to unrigged meshes on export? I say this because the only method ive found to export baked physics animations is this very lengthy and convoluted method:
https://www.youtube.com/watch?v=sVrGnKnjJf4

In 3DS it was quite simple since I believe the exporter would take any separate unrigged mesh and automatically assign a bone to it with the same name as the mesh (at its origin) and skin it during the export process so exporting a scene with baked physics with MassFx was quick and didnt require any extra steps.