SPOILER:
You get the quest for power armor training after you finish Still in the Dark. Come back about a day later and talk to the Brotherhood Elder.
Oh I know, but that was what made me dislike it, you know, besides the fact that you served as McNamara's errand boy the entire time. Did he ever think that a BoS Paladin doesn't look like BoS unless they're wearing power armor? Oh yeah, great leading.
And Volare wasn't that fun for me. Although the history lesson was fun :vaultboy:
"For every 46.8 people we killed, one of ours died!" Ahaha. That and the fact that they just about wanted to kill everything.