Starscream looks for Arcee, following the flashing light. Apparently she's not switching to blasters, favoring the baton for close quarters. To try blasting out another hole to escape would possibly leave him too open to her attack, he had little doubt she could cross the distance between them. He could try keeping her at a distance; but if she got in too close, and he still had his blasters out....

Switching to his claws and sharpening them, Starscream dashed toward her, claws raised. Dealing with Arcee first.