Hey galvatron i got to ask other then bulkhead and impactor who was in the unit.
You've "got" to ask? Why? This is ancient history, the Autobots you're asking about are history. Of what consequence is this information to you? Have I not yet impressed in your mind the fact that your existence is decidedly finite? Fine. I will grant you this—consider it your last wish. I'll even make the effort to remember their names.
Impactor founded the so-called "Wreckers" in his youth. He had the brutality of a true warrior, and the charisma to inspire the rest, but not the strategic mind to keep them alive. Why, I don't think I ever saw him with the same Mini-Con twice—when Ransack finally strung him from Kolkular by his own winch, it was Guzzle that we added to our forces. Violent little monster, that one.
Ah, but it was always the misfits and rejects amongst the Autobots that Impactor found easiest to beguile, those who never stood a chance of joining Optimus Prime's inner circle of yuppies. Those two would clash often, but only ever on matters of tone; make no mistake, Impactor's goals were no less insipid, he was just happy to let his comrades cut loose. Treadbolt liked to crush my soldiers to foil with her drum, taking directions from Rollbar as she reversed—of course, any soldiers stupid enough to perish in this way were ones I could do without. The unit gave Ultra Magnus the freedom to indulge his feud with Treadshot, but when that ended in the death of his partner, Movor, he became a sap, quitting the team and subjecting his replacement Mini-Con to a binary-bonding process, so scared he was of losing that one. Rhinox and Armorhide provided tech support for the team, putting their less high-minded inventions to the test behind Prime's back. And how could I forget Rapid Run—my very own double agent, who told me that he didn't even need to try holding back to blend in.
The other category of so-called "Wreckers" was the laughingstock of the Autobot forces. There was that ridiculous flying car, Swerve, and that ridiculous flying cat, Cheetor. Roadbuster's Mini-Con, Whirl, was incapable of Powerlinxing—have you ever heard of something more pathetic? Smokescreen treated war itself like it was a joke, and was treated like one in turn, even by his own Mini-Con, Ro-Tor.
And finally, there was Bulkhead, who you are already familiar with. When he upgraded his form, he ditched his Mini-Con partner, Micro-Octane, deciding a mindless drone would make for a better combination. Oh, he was quite right—but what a delicious example of Autobot hypocrisy!
Does that help? Is your curiosity satisfied? Can you die happy?