If they remaster fallout 3 for ps4 there should be the option to join the enclave if you spare president eden. It would turn all enclave troopers friendly but the brotherhood would be hostile. When playing the post game mission you would have to defend the satellite from the brotherhood and use the missile controls in the base crawler to destroy the citadel.
Doing my first semi blind playthrough So i know dad dies. And i just reunited with him. But the enclave is showing up?? Like i first saw one when i was being attacked by 2 mirelurks and a King. ( while i had the enclave radio on )