Trailbreaker

Trailbreaker was an Autobot and secondary character in the scrumblebee comic. He was a good tracker, and he used his truck alternate mode to navigate terrain on different planets. He was also just a positive guy.

 Beast Planet Arc 

Trailbreaker was assigned to Springer's team on a mission to find a new transformation module for Fortress Maximus. On the Beast Planet, he participated in the battle against Shockwave.

 Planet X Arc 

When the team landed on Planet X, Trailbreaker was creeped out by the place. He later went with Jazz to scout the area, and they found a crashed Cybertronian car. They were ambushed by Triggerhappy, but the car transformed and saved them. The bot introduced himself as Evac, and they went back to the camp. Trailbreaker participated in the battle against Jhiaxus's forces. He tried to fight Sixshot to avenge Evac's death, but Sixshot killed him with one of his laser rifles. After the battle, Springer mourned his death.

 The Galvatron Crisis Arc 

After the Dinobots saved the Autobots from Sixshot on Chaar, Grimlock asked Jazz about where the rest of Springer's team was. Jazz told Grimlock of Trailbreaker's death, and the Dinobots were sad to hear that he was dead.