Fallout: New Vegas - I Am The Doctor - Part 16

In which we discover the source of the ghouls at REPCONN - a doomsday cult of ghouls with a loony scientist that thinks he's a ghoul. However, they aren't quite as crazy (and are a hell of a lot more agreeable) than the survivalist ghoul in the basement and the NIghtkin Super Mutants sneaking around the place. Can I work out a peaceful solution despite my trigger-happy companions?