Cabal sent out a distress signal to rally a fleet and destroy Oryx. Guardians destroy Oryx instead. Cabal are already on their way. Now that the fleets are rallied and in our solar system, they take the opportunity to take over and rule. Their arrogance and undisputed power makes the Cabal think that [i]"when"[/i] they take over their race will immortalized and looked up to as Gods amongst the other races (Humans, Awoken, Hive and Fallen). The Raid, will be to kill their emperor and destroy the commanding ship, in turn scattering the leaderless fleet back to ever the hell they came from. Cabal will then have a new word for "retreat". That's the way I see it panning out.