Definition of shooters:
(n) :
Someone who shoots something; a gunner, archer, etc.
(n) :
(slang) A firearm.
(n) :
A device for shooting.
(n) :
(craps) The player throwing the dice.
(n) :
(video games) A video game in which shooting enemies (or targets) is the main objective.
(n) :
(slang) An associate willing to act in one's defence or to act against one's enemies, especially by force.