Once again, it's Scourge. This time, part of the Destructicon line which consisted only of two villains and released as a KB Toys exclusive in 2003. (In Europe, he was available at Toys R Us). Like his fellow Destructicon, Bludgeon , Scourge is a redeco of a Generation Two release. In this case, a 1994 "Hero" incarnation of Optimus Prime which turns into a long-nosed Kenworth T600B truck with a bellows-operated artillery gun. That Prime got dipped in the all-black deco, turning him into Scourge.
An Online Amateur Sketchpad