I've been reading various pages on the Fallout Wiki, and they all mention a specific and what looks like an annoying bug in relation to Call to Arms, Semper Invicta and Reunions. You can read more here, for example:
http://fallout.wikia.com/wiki/Call_to_Arms
http://fallout.wikia.com/wiki/Semper_Invicta
But what they all seem to suggest is that doing these quests in the 'wrong' order - i.e. Reunions before getting someway into the BoS quests - will break the vertibirds/BoS patrols for the rest of the game. Obviously this would be annoying (and for all I know might put certain quests at risk), but it's also a bit annoying if a bug forces you into doing a quest line in an order just to work around it.
However, I've searched high and low here, and on other forums and sites, and I'm yet to read anyone else reporting the same bug. It doesn't appear to be verified on the Wiki, either. So I was just wondering if anyone else has experienced it, has seen it in action, or knows any workarounds. I don't mind getting to the BoS line at some point, but I don't particularly want to do it early just to avoid a bug that shouldn't be there. And if it doesn't exist, then even better!
So any info would be great. Thanks.