: I don't remember that but it sounds familiar. I want to say Nylund first
: introduced rampancy as an aside, and I would think it came from something
: other than extensive research to the point of playing previous unrelated
: games; maybe it was an outdated story bible? Anyway it's been official for
: some time. A lot of people think the "Rampant" chapter title
: thing in the level Cortana in Halo 3 refers to her, although I think it's
: supposed to be ambiguous or misleading.

Rampancy has been alluded to at least as early as the Cortana Letters, which came from Bungie. I don't think I've ever heard Bungie say that rampancy was not a thing in the Bungie Halo universe. They invented it :P

Maybe there is a quote somewhere, so if someone can find it, that would be great to see...