This is how Aerial Assault goes in Connor Lacey's Super Adventures of Transformers: War for Cybertron.
Narrator: THE CORE IS TOO DAMAGED BY DARK ENERGON TO SUSTAIN LIFE ON CYBERTRON. IN ORDER TO REPAIR ITSELF, THE CORE MUST SHUT DOWN FOR MILLIONS OF YEARS. CARRYING THE POWER OF THE MATRIX OF LEADERSHIP INSIDE HIM, OPTIMUS PRIME MUST SADLY ORDER THE EVACUATION OF THE ENTIRE PLANET IF THE RACE OF TRANSFORMERS IS TO SURVIVE.
Optimus Prime: To all Autobots within range of this signal, our planet is dying. We have no choice but to take to the stars. I am ordering the evacuation of all Autobot cities effecive immediatly.
Ratchet: What was that?
Megatron: I told you to stay and defy me was to die. And NO ONE defies Megatron.
[The Autobots look on as an enormous orbital gun destroys the Autobot ships]
Ratchet: He's insane.
Optimus Prime: Silverbolt, ready your soldiers! We need that gun offline now!