"Megatron demands loyalty from the Decepticons as a whole, loyalty he gains through his fear and awe-inspiring power and abilities. With the combined threat of a sharp mind, his signature fusion cannon, a pair of deadly swords and simple brute strength there aren't many who would dare cross him. Still, he has no problem occasionally manhandling his troops as a gentle reminder."

If you can do a voice similar to Freddery McMahon's Megatron voice then you got the part (here's an example of the voice https://www.youtube.com/watch?v=hYgko52swps). Otherwise, doing a different interpretation of any other Megatron voice, or really any other voice you want to try out would be fine.