Orion has been slipping in and out of consciousness this entire time, even while mostly unable to move, but something about Megatron's presence draws him back to the surface for a moment. His optics flicker as they open, and he makes some of those weird Peter Cullen groaning sounds (you know the ones) as he's met again with the exhausted ache that cripples his whole body.

"Mega...tron..."

His vocalizers skips and stutters, desperate and pleading.