As the memory reel continues, Megatron becomes increasingly unable to withhold his opinions of the Senator…. But then the explosion occurs.
Like countless things in Soundwave’s past, he had never heard tell of this.
How quaint. The Senator didn’t want to be short a servant. This thought dominated Megatron’s mind because he didn’t want to think of the possibility that Ratbat had rescued Soundwave out of any sort of actual care for the youngling. True or not, he would never cast Ratbat in a heroic light.