-Humanity was once a great civilization. [In Halo, they still were - they were never pushed to a single city, we were fighting back the whole time.] -Struck down by enemies and reduce to fractions of it's former selves. [Again, this is about scale. Halo was about an ongoing fight, destiny is about one we lost long ago] -Saved only by the will of a single protector. [The world in Halo was not save by a single protector, it was many. It was the UNSC. It was all of the Spartan I's, II's, and III's. In Destiny, it isn't even us who saves us. It's something else entirely. Halo was about the human struggle against an oncoming threat. Destiny is about a threat that came and wiped us out - but somehow we survived] -Now Humanity is on the rise, rediscovering itself and the universe. [Humanity is struggling to not be wiped out of existance in destiny, they're not on the rise.] -Still beset by old enemies. [From what I can tell, in destiny, these enemies are new enemies than the ones that wiped us out before]