Still though, it is apparent that he hasn't totally abandoned Eden. He still recognizes Eden as President and still supports his leadership. Prehaps he realized Eden's role in COG and simply felt that his idea was better in this case (it would not be the first time a general of the U.S. has gone a bit AWOL).
It would not be the first time an American General Rebelled. Maybe Autumn just feels remorse for what he did and still sees Eden as president even though its dead. Also we can't know for sure the COG is the sameone that came out in the 1960s but then again I could just be splitting hairs there.
The impression I got from Eden was that he was in contact with Richardson.
I don't remember every thing said from Eden, so I do trust what others including you, about the Enclave in Fallout 3, at least those like you that are dedicated fans of them. I go to wiki and all I can find was he studied Richardson. Try as I might I can't recall Eden saying he talked/knew Richardson. Maybe I should re-install Fallout 3 and make notes.
Well, the Enclave had no reason to believe in Fallout 2 that their plan to wipe the world clean would fail. If their Curling Virus was deployed then they would have had no need to do anything really in terms of "fighting", it was just sit back and relax time. So going to the east wasn't really a primary objective if the wastelanders would have been taken care of anyway.
When the Rig did go boom, the higher ups who would have known about Raven Rock and Eden were killed. So until Eden contacted them, the surivors wouldn't have known about Raven Rock most likely.
They sure did sit back for along time. 2077 till 2241. 164 years. They came up with the plan for Fallout 2 only after along time of building their numbers. If they had the plan from day one Oct 23, 2077 then they could have done it at any time. If they knew about Raven Rock they could have taken back America long before 2241 maybe before 2164 but they did not. Makes no sense, none at all. If you are going to take back America and make it like it was then would it not be easier to do it when the population of mutants and impure humans is very low and not in the hundreds of thousands? Perfect time to take back America would have been within the first 50 years of the Great War. Very little people and the mutant animals had not exploded in humbers.
"The Earth was nearly wiped clean of life." "A quiet darkness fell across the planet lasting many years."
Fallout 2 it makes sense. They were a small group and needed time to make more Enclave babies and they were alone on the Rig and Navarro. Fallout 3 just messes that all to hell.