Impossible to say. Doubtless those soldiers killed or wounded would have lost their weapons, many of which would have been found though many were not.
Please explain your question better, there are many different types of "guns" that were involved in world war two.
No there is not golden guns in World at war.
the machine guns
The closest listing found is The Guns of August (1964) which is a documentary about World War I narrated by Fritz Weaver.
1
The trenches were infamously overrun with rats - some were killed and cooked to supplement poor rations.
sidearm and a rifle.
unknown
Germany had thirty to forty different weapons in World War I. Some of these were artillery, pistols, special weapons such as a flame thrower, machine guns and ships.
1 1/2
estimated 20 million pistols and rifles
That varied depending on the airplane, bombers could have many.