I'd prefer that static BGs dont get absorbed unless the player chooses to merge a static BG into a regular BG. Otherwise, treat the static BG like a regular BG for stacking purposes (eg. max capacity = 1 static + 1 regular Axis BG) When a static BG and a regular Axis BG are stacked in battle, the static BG should assume a 'Rest' posture. If the regular Axis BG loses the map, the static BG is destroyed. The static BG remains in place when the regular Axis BG leaves the map. If the regular Axis BG exits a map that is being contested, the static BG should inherit the existing partial Axis map control.
The problem with static BGs getting absorbed is shown below. Four turns ago Graebner moved onto Nijmegen Bridge, primed the bridge, absorbed the map's static BG, and annihilated the US para BG that arrived from Beek. Then Graebner moved off to fight other battles leaving Nijmegen Bridge undefended. IRL, at a minimum he would have left a garrison on the map, if only some rear echelon types dragooned into service and handed the detonator. These REMFs would represent a static BG being left in place after the regular Axis BG moved on.






