Hey XPGEVO Here. Just like to say that all secret achievements apart from two are all extinction achievements and here is a picture showing what you have to do. Safeguard: Complete round 20 is in squads online Hope this helps
Which one isn't the Extinction cheevo, because i started a guide for the Extinction achievements / trophies here: http://www.xpgamesaves.com/blog/13/entry-293-call-of-duty-ghosts-extinction-achievement-guide/
Ah ok , good job Updated the blog: http://www.xpgamesaves.com/blog/13/entry-293-call-of-duty-ghosts-extinction-achievement-guide/