Playing my turn and the 81mm DF can only move 1 hex at a time cross country, speed 3. The 50cal HMG can move 2 hexes cross country (speed 4). The 81 mortar, complete, weighs 89 pounds whereas the M2 browning 50cal complete weighs 128 pounds. Each has 4 men per tube/mg so that isn't a difference.
Yeah I know, you are rolling your eyes and going "oh brother" but the 81 should have the same speed as the 50% heavier MG.
Sorry
