well i gues the reason with bioshock is not that its lacking multiplayer but.rahter that it has no multiplayer but still is just like other current gen shooters but those can claim multiplayer as a redeeming feature whereas bioshock can not
people got less than they expected yes its a nice game but it never had the amount of freedom and features that were promised /announced by the devs and its essentially just system shock 2 with simplified mechanics to fit the console market
whereas people expected a worthy successor to system shock 2
my argument was that a game that does both single player and multiplayer good is a 9 but neither halo killzone or cod can be categorized as such
and dont even get me started on ut 3 that was the epitome of gimmiky singleplayer :D
