Great game for multiplayer. In my high school days I remember UT being the game we played most in our first year until four of us (one of them being me) got caught by the principal one day and were banned from using our accounts :lolYeah played that so much as well too, every damn day after school. Vice City is my favorite though.
Anyway after our principal scaring us we switched to playing Halo on LAN at school (at least it was through legal means) and Trackmania rest of the school year. Our last year was all about playing DOTA and nothing else. Good times.