U ever heard of psychonauts?..., i don't know what bf2 is ( I guessed battle front? or something) but this game is awsome... at first it seemed childish but it quickly picked up...
Yea, in it, u play as mercs who partake in a war. they do usual shit (either solo or on a team with other players), such as house clearing, battles, etc etc. however, every bullet costs money, so u gotta be careful. they also clash mano a mano in an arena. Think Gladiator, either solo, or teams, and the people can bet on how well they will do.