- Warmonger is, as far as most bots know, a Decepticon from the Marvel Comics UK portion of the Generation One continuity family.
Warmonger is not really a Decepticon! He's actually an Autobot working undercover. And what a fortuitous choice for the job. Heck, his name is Warmonger, and he looks like a conehead. What can go wrong?
Marvel Comics UK continuity
An infiltrator within Decepticon ranks had freed the captured Hot Rod, Kup, and Blurr. Megatron believed this traitor had to be either Warmonger, Octopunch, Stranglehold or Bludgeon, and so he ordered three of the suspects to battle Bludgeon to death. Warmonger got the drop on Bludgeon after the latter had dispatched the other two, but at the critical moment refused to kill him. When Megatron saw this, he correctly concluded that Warmonger was an Autobot, and killed him.