The computer in the San Franciso Brotherhood outpost I believe. If you talk to it about the war it gives you some info. Plus I think Skylab may have mentioned something.
Horrigans easy if you let the turrets do all the work. Then you just need a few gauss rifle shots to his eyes. The first time I played the turrets killed off Horrigan so fast I missed him dying.
I missed that. I’m going to have to replay that now. And I though I figured out everything. I did kill off the president with Super Stimpacks though.