Answer
Artilleryman was not Vitruvius' role in the Roman military. Vitruvius was a Roman architect, engineer, and writer who lived in the 1st century BC. He is best known for his book De Architectura, which is a treatise on architecture. In De Architectura, Vitruvius discusses the principles of architecture, as well as the construction of various types of buildings, including temples, theaters, and houses.