Also who is the cabal? They destroy planets for getting in their way. Ummm three missions about them? I dont see any destroyed planets. And the vex come in vemus yet the final missions are about them. The fallen, hive and cabal dont really have anything that they can be stopped by. But vex is why you go to reef and mars. If final mission is all about vex why not have them the first enemy's. I dont understand