[quote=Necrosis]
The first time could go either way due to the dark Energon and Zod being overconfident. But if there was a 2nd fight, Zod would simple fly into space and just heat vision megatron to death and keep his distance.
[/quote]
It would take A LOT more than that to [i]permanantly[/i] kill Megatron. So long as a bit of his body remains, and there's some dark energon to help with the repairs, he can be rebuilt. (One of Dark Energon's powers is to bring Cybertronians back from the dead)