Just an idea;
Have something along the lines of a Mobile Command Post; a truck, halftrack or purpose-made vehicle which can be sent into the radius of a flag and transform into a command post which gives +command points.
Also, mobile observation post; or alternatively give halftracks the ability to morph into a stationary observation post with increased sight (men with binoculars/rangefinders) but no weapons and/or unable to move.
Would this mainly be a way to increase your economy? Would you only be able to put one mobile command point at a flag? Economy growth is already a part of the game by ammo storage increase(more shells to kill enemy infantry with ).
But it would increase the incentive to raid flag positions if there was mobile command post to kill there. I find raiding quiet hard to do unless you get really close to the enemy base with alot of infantry. Frankly, it’s more important to flank your enemy.