LVTA4 with a historicaly accurate 40mm cannon, think of a ostwind but a LVTA4
LVT-4 Water Buffalo, British designation Buffalo IV (1943)
The engine was moved forward and a large ramp door was added to the rear, allowing troops to exit from the rear of the vehicle. This innovation also greatly facilitated the loading and unloading of cargo. Some vehicles received armor kits. It was by far the most numerous version of the LVT, with 8,351 units delivered. Many of the British LVT versions were armed with a Polsten 20 mm cannon and 2 x .30 cal Browning MGs.
LVT-4(F) Sea Serpent - British version armed with flamethrowers.
LVT(A)-4 (1944)
Another fire support version, with 75 mm Howitzer Motor Carriage M8 turret armed with a 75 mm howitzer, in some cases replaced with the Canadian Ronson flamethrower. A single .50 cal machine gun was installed on the ring mount above the turret rear. In the late production vehicles the heavy machine gun was replaced with two M1919A4 .30 MGs on pintle mounts and one more in the bow mount. 1,890 units produced.
Based on historical accuracy, I would have to say your version of the LVT-4 with 40mm guns will never see the light of day. However, if you were to with for the British version of the LVT-4 (Buffalo IV) then maybe we'll see one with the historical armament of 20mm Polsen cannons.
Though I would like to see a perk package for being able to carry troops in the LVT-4 as even with the LVT(A)-4, assault troops could be carried.
ack-ack
