The problem with this is that if you've spent the entire game working with the NCR, and have already destroyed Mr. House, you can't ally with the Brotherhood and NCR unless McNamara is still Elder. Unfortunately there's no warning of this, and no way to work with Hardin. Now I'm stuck between a rock and a hard place. My only option to progress is to backstab one of my allies.
If I decide to stay with the Brotherhood at this point I'd have to wipe out the NCR, with whom I've spent 99% of my time in the game working for. If I go with the NCR I'd have to destroy the Brotherhood, who I've also helped quite a bit.
I could always go with Yes Man but that's not an option as far as I'm concerned. I should be able to at least pass a speech check or something to get Hardin to sign a truce with the NCR. Right now I'm basically locked at this portion of the main quest because I made a decision that at the time didn't seem to have repercussions this severe.
So really, all I'd like to know is why aren't we given that option to convince Hardin?
Some quest stages to put into the console to skip ahead and tell the NCR colonel that the Brotherhood won't be a problem would also be a great help.
