Arcade games?

[~Chance~]

I just goit a hold of 1240 MS points. W00T! and im wondering what arcade game is worth it. Im not trying to use them up all at once, but for the right game i will. I want a shooter, im looking at battlefield and Perfect dark. PD is an old school shooter that i loved, but is the online there? How many people still play battlefield, I need help!