I am glad to see that I am not the only one who feels that
BR armies get too large, although imho the root cause is
that there is too much money in the game after only a few
DT's.

I would like to make a suggestion;

That a unit takes 3 action rounds to become fully available.
One round to muster (assemble, repair equipment, organize
into sub-units, physical training,etc. And 2 rounds to recover
martial skills (minuses to attack & defense) and unit cohesion.

Perhaps there should be a level of ready reserve that can be
mustered in a round, ready to fight. Maintainence cost for such
units would be substantially less but not negligible.

L8R