The only problems I can find arte involving the thompson on the turret,
A. As Delbert said, the stock would break if caought on anything
B. M1's, and M1a1's thompson were rarely seen with the compensator, I suggest either sawing off the front part of the compensator, or replacing the gun,the former seems more realistic to me, as I would rarely bother to paint onother gun :-p , I shoild really belong to lazy people anonymous!
Other than that, your tank is great!
not one problem!