Many of you have probably heard this by now--at least I hope you have. Do not buy any 2k Games DLC'S! I just wasted 10 bucks worth of Microsoft Points on Bioshock 2's Metro Pack, and it is unplayable. All 10 gamers in your lobby have to own the DLC for you to play it. Guess what? 95% don't, and there's no separatelobby for those who do. If ONE player-that's it--hasn't downloaded it, you can neverplay it, and thus also never get the DLC exclusive achievements.This isanother blatant attempt by2kto screw us gamers over, and it stops here. After months of complaints, the developers have continued to ignore us, so keep shouting louder and don't buy any 2k downloadable content until they get this fixed!