Shooting games are about pointing at something and hitting it before it hits you. Some go first person with a crosshair and a mouse, others put you in a tank, a plane or a car and ask you to lead your shots while you drive. The skills are the same across the board: steady aim, quick reactions, and knowing when to peek and when to back off. Ammo and health are usually limited, so spraying everything rarely works.
Start with RIVALS FPS if you want straight online firefights, or Hills Of Steel if tank shells and bouncing physics sound better. Dogfight is the one for plane duels, and Sorter: Ragdoll Playground Shooter is there for when you just want to knock things around with no pressure.
