Impactor is the legendary former leader of the Wreckers, an elite Autobot strike team, and as such is a deadly force to be reckoned with on the battlefield. His body is covered with weaponry, from the tank cannon on his shoulder, to the missiles hidden in his chest, to the handgun strapped to his leg, and finally his signature harpoon weapon that replaces his right hand. His audacity and resolve is what puts him in the history books, for better or for worse.
Impactor's first officer, Springer, is inevitably his replacement, once terrible things occur. Springer's feelings regarding his filling of Impactor's immense shoes are always a source of angst. Just when Springer thinks these emotions are dealt with and buried, Impactor somehow returns to mix things up again.
His alt-mode is a Cybertronian Tank.