One thing, that you had not thought. It´s that in real combat your subordinates has better "AI" than your computer.
When you command your troops, in a tactical computer wargame, it´s better than you has a direct control of them, in order to simulate your officers command. Of course this give you a unreal "God" vision, but the profit of this direct control is by far more advantageous in gaming terms.
.I think than the unit´s system control in CMBB is good enough. ¡¡¡It´s real good one!!!