Is it possible to take the Army-Corps command relationship and extend it downwards to the corps-division level while continuing to maintain the army-corps command relationships? I am thinking it could possibly be useful in RUS to spread divisions out from a corps with a command range of 1 region. Basically attach divisions and other corps formations to a corps (just as corps are attached to an army). Divisions will then receive corps benefits as long as they are within corps command range (RUS one hex).
I assume if you ever do a WW2 game, you would want this sort of ability at the corps level to allow corps to deploy their divisions to form longer battlefronts. With changes in command control, weapons, logistics, etc, corps basically went from complete physical concentration within eyesight to a general battlefront covering 10's of miles. Allowing corps to deploy divisions would reflect greater battlefronts nicely.