shooter; marksman
General term for a person who shoots, especially with a firearm. Can refer to a skilled marksman or simply someone firing a weapon.
He is an excellent shooter and won the shooting competition.
In sports like soccer and basketball, refers to a player who takes shots at the goal or basket.
He is the best shooter on the team.
shooter game fan
Refers to a person who enjoys playing shooter video games, such as first-person shooters.
He is an avid shooter game fan and plays online matches every night.