A lot of soldiers use AR15s these days. Some still use the M16. This is a very generalized answer,but I hope it is useful.
the same as the average height of all people
A rifle. A spade. Hand grenades. Food. Waterproof cape. Helmet. Boots. Medical kit.
23
16 years old
100 1b I guess
At ranges.
Up to the 1950s, it was the British Enfield 303 caliber rifle.
Professional soldiers do no not. Actors may.
The Ariska was the main rifle used by Japanese soldiers in WW2
American soldiers used the M1 Garand rifle, the M1 Carbine, the BAR rifle, the Thompson Machine Gun, the Colt M1911 pistol, the M3 'grease gun' and the M1903 Springfield sniper rifle.
Impossible to answer without knowing the exact rifle.
Soldiers used bayonets attached to a rifle or musket as a spear. When the bayonet was not affixed to the gun, the soldiers used the bayonets as a general purpose cutting tool.
500
fallen battle cross
the same as the average height of all people
About $400, to, say, $900.
500 USD