Master Chief is a well known wielder of multiple forms of fire arms, even alien kinds.


Gunsmanship is the particular skill with fire arms, this is achieved with training to achieve precision shots, aiming, withstanding the kick that guns tend to have when fired. This can be varied depending on what kind of fire arm using, pistols, rifles, shotguns, rocket launchers, machine guns, etc.. This can also be used to hit moving targets, targets that are long range, or rapidly hit multiple targets at once.

This is mostly used by modern day armies and even future series armies, The first guns that were ever used in history was in the late 15th century.