Multiplayer is where this game excels, you have a modicum of multiplayer choices ranging from capture the flag, to death match. If you do not have any friends you can just put in bots and play against the A.I. The mutliplayer is strong compared to the single player which is very weak.
Single player campaign is a story about this lady who steals your child. He is very strong in the force, no this is not Star Wars, so you have to go out and rescue your son. If you don't pay attention to the story line its ok, you won't miss much, aside from a bizarre science fiction story. The best part about campaign is that you can play co-op so that is always a plus.
In other words, do not buy this game for single player campaign or you will be very disapointed, this game if played best with your friends and family for some nostalgia time. And the sound is not too shabby.