"Officially, there never was a 'clone rebellion' on Kamino. UNOFFICIALLY, approximately 20 years after we were created, a special detachment of the Imperial 501st Legion was dispatched to Kamino, with orders to eradicate an army of clones that had been bred to take arms against the Empire. Our mission commander, an expert on the inner workings of Kamino, was a young bounty hunter named... Boba Fett."
This was a cool mission because it was rather short. Plus even if Fett got killed, you could immediately use him again!