A) Crota's mom and dad are both Oryx. Read book of sorrows, Oryx was originally a female. B) There is no 10 year plan, bungie said that themselves. read http://www.gamesradar.com/bungie-says-theres-no-10-year-plan-destiny/ For the people who are lazy, here is the copy pasted quote "It just became the narrative. I mean, I drive a Honda Civic. I don’t know shit about $500 million. A ten-year plan? It’s a ten-year partnership agreement. It has nothing to do with the development of the game proper. To think that somehow, before Destiny had shipped, we had some ten-year plan written down somewhere? It’s comical. We allowed the narrative to get constructed that Bungie is just a corporate entity and not a bunch of humans, a collection of people who are just trying to make a really great game."