From "The Transformers: The Master Builders (#2.12)"
Ah, my loyal Constructicons. You are loyal, aren't you? No! You're traitors! And you can't deny it!
[shows footage of the Constructicons talking with Hoist and Grapple
Megatron, y-y-you've got it all wrong!
We're still working for you and for the glory of the Decepticons.
You see, we eavesdropped on their plans...
...plans to build a whopper solar tower...
...that would produce mega-watts of energy!
Energy we could use to destroy the Autobots! Get it, get it, huh?
Perhaps this can be used to our advantage. But be warned: Do not betray me.