The only really usfull peice of information he gave was that Gray fox will not be in the game.
Since Fox was a child soldier during the 1980s, it kind of goes without saying that he can't have been around in the '60s.

I like the idea of a primitive, natural setting for a change. camouflage - except for boxes and shadows - never really appeared as an option in the other games... although I'm hoping that the game will reveal more about the (SPOILER)Patriots, or "La-li-lu-le-lo", revealed in 'Sons of Liberty', since we were told tantalisingly few hard facts and were left with plenty of unanswered questions.