Quote Originally Posted by Paulbot View Post
The "Decepticon Impactor" has a head design closer to the IDW version than the regular release toy. The "Decepticon" toy also has the yellow/black "mining" stripes he was wearing in his earliest chronological IDW appearance (Chaos Theory) in which Megatron was pitching the Decepticon cause to a skeptical Impactor. It's possible that Impactor was very early on (and likely not for long) a member of the Decepticons in a story that was never told.

(Also with Impactor part of a rebelling working class and Mirage part of the ruling elite it makes sense they could be at odds and labelling him a Decepticon just is easier for the toys then explaing class warfare!)
Sounds like you have figured it out. Thanks, Paul.