I am directed by Yes Man to make contact with the Brotherhood of Steel. When I get to Hidden Valley, there are 2 bunkers, both deserted and caved in, and one hollow rock that is no entry point, and I am soon attacked by 4 Brotherhood soldiers on the surface, with no opportunity to speak. What gives?. Please help, I can't seem to go beyond this sub-quest.

Are you wearing NCR gear?

Upgrading Mr.House's Robots makes them mad.

If you want a hint...

There is a forum set aside specifically for the asking

What is it?

Hint Hint

Wait for it...

It's the Fallout New Vegas Cheats, Hints, and Spoilers Forum!!

Ta DA!