Gatling guns ,cannons
One or more mounted machine guns is a "nest."
Gold mounted guns is the cowboy form western drama story, it is in from middle age English.
An army truck with guns is commonly called an armored vehicle, specifically an armored military truck. These trucks are designed to transport troops and equipment while also offering protection and offensive capabilities through mounted weapons.
it affected it by gas.
Small guns made of wrought iron were usually mounted on ship to help defend them from enemy ships. These guns were used to threaten, and scare away enemies. They were mounted to the ship's deck.
For guns not mounted in a turret, this would likely be a Splinter Shield (protects from shell splinters)
Out to 3-4K meteres they can hit a tank.
The largest guns ever mounted were 460mm (18 in) guns used on the Japanese Yamato class battleships which fired 3,219 lb projectile up to a maximum range of 42,000 meters
No not that i know of. Some tanks had machines guns mounted on them so they could use them agaisnt aircraft. Also there were tanks made which had flack guns mounted on them. For example, the German Wirbelwind.
Machine guns and autocannons were mounted on the aircraft which the Japanese used in their attack of Pearl Harbour.
A gun is a projectile weapon. It launches one or more projectiles from a tube by means of gas. If the gas is produced by burning the gun is classified a firearm. If the gas is compressed by means of a spring or fed from a reservoir the gun is classified an air gun. Guns intended to be fired from the shoulder and held by both hands are called long arms. Guns meant to be operated by a single hand and lacking a stock are called handguns. Guns firing multiple projectiles consecutively by a single action of the trigger are called machine guns. Large guns mounted on vehicles, ships or fortifications are called cannons. There are also tools that are called guns because of their shape and similarity of controls to a handgun. This would include nail guns, glue guns, caulk guns, staple guns and the like.