A weapons expert is commonly referred to as an armorer or a weapons specialist. These professionals have extensive knowledge about firearms, ammunition, and various types of weaponry, including their design, operation, and maintenance. In military contexts, they may also be known as ordnance officers or weapons instructors, depending on their specific roles and responsibilities.
An Expert Aviator is called an "Ace".
A cultures expert is called an ethnologist.
what ia an expert pilot called
A bully expert is called a bullnation
A grammar expert is called a grammatician or a grammarian.
The difficulty does not affect the weapon statistics.
Expert advice or expert guidance.
An expert in his field is often called a specialist or an authority.
an expert on China is called a sinologist.
Weapons qualification in the US Army has three awards. Expert, Sharpshooter & Marksman (the lowest of the three). The marksman award is sometimes refered to as the "BOLO Badge". For the standard personal arms--rifles and pistols--Expert, Sharpshooter and Marksman are the awards. For other weapons, like machineguns and grenades, they use First Class, Second Class and Third Class.
A cultures expert is called an ethnologist.
Don't know the origin of the word, but a snake expert is called a herpetologist.