The Browning Automatic Rifle known as the BAR and the 50 caliber Browning automatic were the most popular guns used by the Allied Forces and the US Forces. I have included a link below that has a list of weapons used by the US forces.
On aeroplanes fighting against each other & ground targets, and on the ground itself firing against enemy targets.
The World War I zeppelins were large blimps used to gain information from over enemy lines, but were slow and easy targets for artillery guns.
guns
used guns
They all did.
1
machine guns
No there is not golden guns in World at war.
the machine guns
Who all ever was involved in the war.
guns, bombs, the usual
All sides involved did.