I can't comment on military applications, but I do have 30 years experience in mobile equipment and vehicle maintenance and fleet management. Despite the OBD 2, the major vehicle producers are increasingly requiring proprietary information and specialized tools for what could be simple routine repairs and maintenance. The described system could be a boon to technicians but my cynical view is that it will just be turned into another income source for vehicle manufacturers and dealer service departments. On many cars now you can't even change a coolant hose without a substantial investment in a "hose fitting disconnect kit", let alone accessing any non-generic DTCs from OBD2 or CAN. And of course Ford, Honda, GM, Toyota etc. are all different.