So, how about, placing the mortar in the Sergeant tier, and moving the pack howitzers to either doctrines (I.E. replacing the 57mm AT gun from Airborne and Recon Support, since the Pack howitzer was really a mountain and airborne infantry weapon), OR....
"MY" second suggestion is the least likely one to have everyone to agree, but i'd say make it air droppable by the Major (no really...)
Any other suggestions?
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