I have now been attacked at least 3 times by a vertibird..I thought those were piloted by the BoS...am I wrong? Are there other factions flying them too? I'm a knight in the BoS, and for now am 'cool' with them, but if they keep it up, I'll wipe 'em out..

Gunners fly them I think

Oh, I didn't know that, thanks...I thought I was going to have to clean house at the prydwen.