Is there a way to play as everyone in Transformers 2 revenge of the fallen?

Hi I have transformers 2 revenge of the fallen for decepticons and I'm wondering if I can play as Demolisher or the Fallen or any other Decepticons. Oh yeah almost forgot, what does the cheatArmogedon do?Is there a way to play as everyone in Transformers 2 revenge of the fallen?i dont think u can...Is there a way to play as everyone in Transformers 2 revenge of the fallen?i dont have the game so idk! go one google and type it in there!