[quote=ViKtoricus]
What was Grimlock capable of doing before Shockwave's experiment? What was he capable of doing after the experiment?I need to know that first. Like, how long will it take one Grimlock to destroy one US state?
[/quote]
Before experimentation? Not really explained much. After? He could probably take on a nation and hold his ground for a while. They have numbers and would probably outsmart him, but it would be one hell of a fight.

Grimlock destroy a state? That could take a bit as he's only one Grimlock. But he'd do it, if they pissed him off enough. He doesn't have super speed or anything, so it may take a bit to go from town to town. But the wreckage he would leave behind would be ... Not very much would be left. Mostly burning buildings with massive holes and sword slashes. I'd reckon somewhere between a couple weeks for a smaller state.