Who cares, honestly. 95% of owners will never make up their own units, and 99.9% will never create their own 3D model. I certainly won't. I'm happy that players have the option to, and I can imagine that some bright boys will be able to come up with some interesting "theatre mods" for widespread distribution (at cost of a lot of work), but I think you will see some Operation Flashpointitis set in where sweeping mod projects get started - mostly impressive looking websites with bells, whistles, and status boards - that never get finished.