Megatron is still situated between Tarn and the door and he’s pinned tightly in a corner unless he wants to go through his old leader.

“Come now, Megatron, those are awfully strong words I’m sure we can come to some sort of an arrangement. Lets not do anything too hasty.”

Taking a deep breath he puts his hands where Megatron can see them, attempting to appear as non-threatening as possible. He just needs to calm Megatron enough to make it to the door.