While the Thompson SMG was designed back in 1917, the M1928A1 variant seen above did not enter mass production until just before the events of Pearl Harbor took place. This new version included provisions for a sling, and a horizontal foregrip that replaced the vertical grip of previous versions. Chambered in the .45 ACP round, the Thompson could either be fitted with a 20-round box magazine, or 50-round drum magazine, but frontline combat soon highlighted the problems of the 50-round one. In all, approximately 562,000 were made, with several being sent to other countries, like the Soviet Union, as a part of the lend-lease program.
A blaze is very strong in the short distance, but don't put too much confidence because scattering by the blaze is intense. It is rare that you can't defeat an enemy even if you shoot a full magazine exhaustively.
Platoon leader and close combat soldiers are mainly equipped with it.