Shooter Genre

Counter-Strike: Global Offensive
Battlefield 4

Elements of the Genre

Shooter games involve the player destroying various objects or enemies with a weapon, typically a gun. Shooters require the player to survive be defeating enemies while usually playing as a character in the game following a story. Shooter games range from first person shooters where the player sees through characters point of view while in the game, to third person where the character is controlled by the user looking from behind the character in the game.

Older shooters such as Wolfenstein and Quake were fast paced fiction based shooters where as today there are many shooters that range from military simulators such as Arma to large expansive fictional words that span numerous iterations such as Halo.
Violence
Gore/Blood
Narrative
Companions