"*I suppose you might find it hard to believe, but yes, I actually have tried reading the manual. Amazing, eh? Yes, the manual says that Gryphus squadron is secret, but I have a few couple objections to that. Firstly, the manual is from Namco's US branch, which claims on the official ACX website that ACX is ""Set in an entirely new world and setting apart from installments on the Playstation 2 computer entertainment system,"" when Ace Combat X is rather obviously the same world as every other AC, with the exceptions of Ace/Air Combat and Ace Combat Advance. Secondly is SurgicalStrikes's points, which I agree with wholeheartedly.  

 *"