i dont know how to do this. i tried stealthily assassinating the heads of the brotherhood for no rep loss but that doesnt count as 'dealing with the brotherhood.' the one method to destroy them is to blow up the bunker, but i know veronica leaves you if you choose to do that. so im trying to do the killing part but i dont know who to kill. is it every single member? paladins and key members? if anyone knows how to do this it would be VERY helpful if you told me how

Don't bring her with you when you blow it up.

Worked for me.

well i just did it. i had to use 5 stealth boys but i killed everyone of the brotherhood of steel without reputation loss. lol except one scribe. i think you have to kill all the initiates and paladins for it to be considered 'destroyed.' im still accepted with them and the awesome thing is that they still give me ammo in that container

I'm fairly sure that you need her to join the Follower's.