Transformers 2: Megatron To Return As A Tank?

Rumor has it that the Decepticon bad boy, Megatron, may be making a return to the screen for Transformers: Revenge Of The Fallen. This time, Megatron is said to be in the form of a military tank, but that's caused some people to wonder if that means the Autobots have resurrected him to help them defeat The Fallen. Either way, Megatron will have a hard time upstaging all the glimmering General Motors product placement. Wait, does GM make tanks? [via chud, image via plasticcrack]