What is the setting of your game, in regards to time and theme? Is it a futuristic sci-fi or science fantasy game? A gritty, turn of the century WWI-like theme? Or is it set in the 17th-18th century, when muskets were becoming more popular yet blades were still used at close range?
To answer your question, the game is set in a fantasy universe, around its own version of the 17th-18th century.