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

1. Micrsoft are the first ones to be testing it, so how could Sony added the achievements?

2. GG Bridge? Since when do game developers use memes such as GG? They only use super-popular ones.

3. Testing and the actual use of the map of MoTD won't occur until sometime in early may. So they releasing something like this a month before is unlikely.

TL;DR: I bet its fake, until it is real or the real achievements come out I don't think we can add these.