good long shooters

i cant figure out what game i want. i love first person shooters, but im not shure which ones are the best. also i would like for them to be a long game, and it would be awesome if they had online play. also is splinter cell essentials a good game, ime a big fan of the other ones, so any posts are appreciated

What about Medal of Honours, it has online but pretty much overloaded with hackers.

I like playing Killzone, it's fun and online too. Offline mode has a good story so it's worth playing.

I love too say SOCOM FTB2 but the hackers on there are nubs with no skills and when you tell them that they send you a invite so you have haf your stuff blocked and your psp freezes up and then you need too make a new account

and in MOHH2 same thing alot of hackers