Have played mostly other genres in the past, my FPS knowledge is limited to games like Bioshock and Half Life 2. I'd like to try something but have usually kept away from them due to bad community rep (i'd like to be left to my own devices to learn, rather than instant omg noob gtfo. ).

What's a good FPS to start off with? I have MAG and Resistance 2 laying around from when I got my console, but they're fairly old now, I feel like it'll be all skilled players. Is TF2 really as bad a port as made out to be?