Breakdown. The personality he had just screamed so much possible redemption. He's one of the few Con's I could have seen accepting the war as over and joining with the Autobots. Like Knockout. The creators wanted to get Adam Baldwin however and I can only imagine that, given the choice between doing Law and Order and continuing to voice Breakdown, the former gave better opportunity to Adam. They honestly should have found someone they could have held onto for the whole show like with Daran Norris. Even if Adam's voice was really good, he didn't have the schedule to linger for three years.