Board Thread:Metal Gear Solid V/@comment-4913740-20140331092208/@comment-1672596-20140331162826

69.35.192.125 wrote: Knowing about MSF and Mother Base doesn't mean anything about knowing about Outer Heaven. I don't remember anybody mentioning "Outer Heaven" in close proximity to Paz, unless she mentioned it in her tapes (I haven't listened to them in a while). The text at the opening of Ground Zeroes implies that Zero sent Paz to bring Big Boss in peacefully (by stealing a Metal Gear and launching a nuke at the US...). This lines up with Zero still viewing Big Boss as a friend, like EVA mentions in MGS4.

I'm not sure launching a nuke at the US counts as a "peaceful" way to bring Big Boss in, as its going to cause a lot of death and destruction. And either way, he certainly knows about Diamond Dogs, considering that Miller was leading the group and was captured while Big Boss was still in a coma.