“You’re so weak”- Megatron Bro, Optimus was soloing you and like 3 other powerful Decepticons and was winning. You only won because of your cowardice of a real fight.
the 'weak' that megatron is referring to here I think is more so how optimus let his guard down for a moment trying to protect sam, and in doing so he was able to be killed. the 'weakness' here is how he cares about humanity and how that allows him to be taken by surprise.
I just thought of that "no more disguises, no mercy" as I watched the other one and realized there was a pt 2. xD Love the music inclusion btw, real chills. Scalpel: Need parts...KILL ZE LITTLE ONE!!! Demolisher: This is not your world to rule. The Fallen shall rise again.