Marvel Comics continuity
Devil's Due G.I. Joe vs Transformers continuity
Cliffjumper was aboard the Ark when it crashed on Earth in the past, and lay dormant when it was discovered by Cobra in the present. Wheeljack eventually undid the reprogramming, freeing Autobot and Decepticon alike. As the factions continued their war on Cobra Island, Cliffjumper helped Sideswipe and Sunstreaker fight Skywarp and Thundercracker.The terrorist organization subsequently reprogrammed the Transformers to serve them, reformatting Cliffjumper into a Cobra vehicle in the process. Luckily,
Years later, having returned to Cybertron, Cliffjumper was part of an Autobot team led by Hot Rod, waiting for a chance to beat up Serpent O.R. and his Decepticon army. When that chance came, the team fought the Decepticons alongside G.I. Joe, eventually defeating them.
Cliffjumper isn't shown in vehicle mode during the first Devil's Due crossover story, so it's unclear which vehicle does he transform into.