Shadowrun for 360
Just picked up "Shadowrun" at the local gamestop and I must say, I am very impressed! Think of counter-strike except technology and the use of other special abilities plays heavily into the rounds.
You start off by picking your faction (stereotypical militaristic types vs. rag tag resistance) and your race (each race excels at different abilities) and then buy your weapons/tech/powers at the begining of each round much like CS. The match goes about much like a CS match, being as when you die you wait for the next match to start.
Online play is awesome too, as a shit load of players can play in one game with very minimal lag.
I give the game an 8.4/10