I really like the Brotherhood but when I support the Legion I have to destroy the brotherhood. I'm think it will be a lore friendly becouse both of the factions hate the NCR(The enemy of my enemy is my friend)
I think it was really cool if the Vault Dweller from Fallout 1 was suddenly reappears in the Mojave Wasteland in 2281 as a ghoul and a companion with some dialogues. But becouse my modding skill is 0 i can't do it by myself.