I know many of you have been waiting patiently for an update to the two problems experienced with the game itself and with the achievement weirdness. The Mission Mode pack is now back up on Marketplace.They are going to need a little more time to figure out the freezing issue.

For those who downloaded the pack when it was available last week but didn't unlock achievements before the fix was posted, you should be good to go. For those who ran into problems with unlocking achievements, we've seen that many have had luck fixing things by either clearing the cache or recovering their gamertag. This removes the first update and allows the fixed one to be downloaded instead. (Please note that by clearing the cache, you will be prompted to update any game that has receieved updates in the past. Not really such a bad thing - at least everything will be up to date.)

Thanks again for your patience.