Is it possible that there are other factions out there that we don't know about that are also very obsessed with technology and pre-war tech? Is it possible that there are other projects like liberty prime and maybe other weapons and armor that is in a bunker that still needs to be found?
Slightly off topic also, What was the enclaves Armour in fallout 3? Was it mk2 version of th power armor of mk2 version of the original enclave armor? (please no hating on any designs please)