User blog comment:Damac1214/Mob of the Dead Achievements Leaked/@comment-4921618-20130412180323/@comment-76.241.129.11-20130412181116

1. It's actually not too uncommon for the achievements to be revealed in this way.

2. GG could be the Golden Gate bridge. But that's just speculation until we know for sure.

3. There's more than likely testing done before release as well. Otherwise these maps would be a bit unplayable on release date. But I get what you're saying. Xbox players are kind of the guinea (sp?) pigs for a month.