- "Once we're inside the cruiser we make our way to C-Deck. That's where their communication center is housed."
- ―Colonel Gascon to D-Squad
C-Deck was a deck on the Providence-class dreadnought that was Super tactical droid Aut-O's flagship. It contained the ship's communications center and the Separatist Encryption module. This module was sought out by the Galactic Republic to decode a Confederate transmission from the Supreme Commander of the Droid Army, General Grievous. To recover this module, the Republic sent D-Squad, an elite squad of Republic droids to infiltrate the ship, and recover it.