This discussion reminds me of the old game Total Annihilation.
The back story was, once scientists worked out how to achieve immortality through uploading human consciousness into computers, the government legislated that everyone had to do so, creating a new immortal race. Anyway many rebelled against this starting a civil war across the galaxy, those who were uploaded were called the Core and those who opposed, the Arm (presumably because they still had limbs). Over thousands of years they almost exhausted the resources throughout the galaxy with the Core evolving into little more than specialised AIs while the Arm, to make up for loses resorted to cloning and genetic engineering leaving them human in appearance alone.
Dodgy old graphics but everything from armoured battle suits through vehicles, droids, drones, aircraft, ships, weapon emplacements ands lots of buildings of different types.