Originally Posted by protocida
Just found out Starscream was taking care of the Fallen's return while Megatron was dead, and that he "tatooed" the cybertronian symbols on his body as an symbol of his revenge. Pity that those weren't explored in the movie.
They were explored more in the comics, but yeah, wish they would have gotten a mention in the movie. Megatron maybe asking him, "Do you serve me or The Fallen Starscream?"