First of all, correct me if im wrong but i thought when a game had the xbox live logo on the top right hand corner it meant you were able to play the game with friends. But i cant seem to find a multiplayer menu.
What really annoyed me was you are unable to level select. It only lets you load saved games. So unless you kept the saved file from each level, theres no way of gettig back to them. I missed killing one of the big daddys in the first level. Im up to level 4 now and im needing some ADAM.
I cant go back to level one now...as i saved over the data...grrrrr Thats a real bummer!