Assimilation of a defeated commanders infrastructure and/maybe units could add an interesting dynamic to Uber Annihilation. Infrastructure/units go dormant after controlling commanders death until reactivated by a unit from any live commanders army. ps: upsidedown face, I know aboot the search feature.
This would make an interesting mod and would make drop-in ffa game modes into something that is actually fun, since you could start in a wrecked base halfway through a game and build up fast. Wouldn't a resurrection bot be a simpler way to do what you are looking for?