I'm not a 'User' so can someone explain to me why whenever i play counterstrike or MW2 or bfbc2, or pretty much any major FPS game online there are always stoned guys playing? 
 
i'm not judgemental against this, i'm just wondering if theres some kind of attraction to FPS gaming when you're high.

they appeal to that crowd more then any other genre no real reason for it

Because they don't have a story, so they don't have to think. 

Because pot smoking is often a social activity, though a passive one, and sitting around with your friends and playing a first person shooter is as well. They are conducive to one another.

It's not just FPS games, or even games themselves.
 
Anything that can be done that doesn't require too much brain processing or physical activity is convenient for a pot smoker. You don't see too many joggers or Chess Grandmasters with a fat blunt, do you?
 
I write as a former weed hound myself, with ten years of lung pickling experience.

cuz blunt trauma bro

I think there're just a huge amount of player base for those games, so you see more of them, and they're often the games that anyone could pick up and play socially, and people smoke pot when they're with friends. 

Didn't you know yet? We're all high, all the time. WOOHOO

Question: How do you know they are stoned?

Because online shooters are for bad people.