A small pen gun and cigarette box gun were the smallest guns used by spies and Underground Resistance warriors.
The Minigun was not fielded until the 1960s .
The British Sten SMG in 1941
The PPSh-41 was Russian made sub-machine gun .
yes alot. you might want to look up "trench gun"
Various types of weapons were used on planes in World War 2 but the number one weapon was the Browning 50 Caliber automatic gun with thousands of rounds.
A handgun. Some European pistols were .32 caliber, and would have been the smallest used, but many .22 caliber rifles were used in training.
To win the war
Mg42
YES
No it is a old Gun used in the world war 2
Machine Gun
MP44
No it does not
mg 42
M-1 Garand
Sten; Bren....
the sten?