Marvel Comics continuity
Devil's Due G.I. Joe vs Transformers continuity
Cobra dug dozens of Autobots and Decepticons out of their four-million-year resting place and began rebuilding them into a Cobra-controlled army. However, with Wheeljack and Bumblebee's help, the mind-controlled Transformers were awakened, and the very cheesed-off Constructicons, including Mixmaster, descended upon their previous captor, Doctor Mindbender.
They decided to pay him back him painfully by mixing him to death inside Mixmaster's drum, but were interrupted by Soundwave, who needed the doctor to work the SPS Satellite for him. Mixmaster was disappointed about Soundwave taking their fun away, but was ordered to protect the satellite controls from the attacking Autobot and G.I. Joe forces. The Constructicons did like they were told, but were ultimately defeated despite forming Devastator during the battle.