Thanks for playing. In my design, the player assigns mission lines to HQs (select a HQ and right click on map). Then the HQ and its subordinates that are not overridden by other missions will be deployed according to the "frontline" map derived from the influence map. A similar gameplay mechanic can be seen in Command Ops 2 and JTS games's AI scripts, where orders can be assigned at any level of the command hierarchy. It is also somewhat similar to HOI4's frontline system.