Hey guys, I finished the Brotherhood questline with McNamara and joined them. When I talked to House for The House Always Wins IV, where he orders you to go kill the Brotherhood, I was given the option to say that the Brotherhood would attack the NCR when the battle starts, and then that I had made an agreement with the Brotherhood to go to the NCR's aid to defend the damn.

My question is, why am I able to say these things? I've not been able to open any dialogue with a Brotherhood member regarding it, and I can't find any NCR higher-ups to ask about it. Any help would be good, thanks!

Er, it's actually The House Always Wins V.

Can anyone either direct me to the NCR superior officers, or the Brotherhood people to speak to regarding this? I would LOVE to be able to get the Brotherhood to help the NCR out at the dam.