Body Augmentation Program
The Body Augmentation Program allows for a Transformer to attain a more warfare-centric body.
Fiction
IDW Generation 1 comics
Rejected from the Autobot front lines of the Great War due to his meager body, Pneumatix underwent the Body Augmentation Program, obtaining a body that transformed into a Class 3 Ruination Tank. His fuel consumption increased a hundredfold and he attained the name of Guzzle as a result. Last Stand of the Wreckers #5