And Bungie and Microsoft supposedly knew about it. Wow.
http://nukezilla.com/2010/09/14/got-a-new-4g-xbox-slim-you-cant-play-halo-reach-co-op-then/
http://nukezilla.com/2010/09/14/got-a-new-4g-xbox-slim-you-cant-play-halo-reach-co-op-then/