At first i wasn't much of a gamer myself, i had more fun watching someone else play while keeping an eye out for the small details and well hidden enemies.
I was a camper in my early days of gaming myself. Or how i liked to call it "Tactical Positioning".
It might not be fun for the rest, but in a real war, i'd rather snipe all my enemies before they get to me, than allow "fair" play and get my brains splattered on the wall behind me.
After that i had my time of playing cannon fodder, or "Tactical Position Spotter".
Charge in with a machine gun while my buddies gave me sniper cover.
Nowadays i'm more of an artistic/story gamer and i switched from mostly FPS to solely RPG/Adventure games (with a hint of FPS like Fallout 3, S.T.A.L.K.E.R. or Borderlands, if it blends in well with the story).
And the real artistic stuff like Machinarium or Drawn: The Painted Tower.