Charybdis-Class Destroyer

The Charybdis-Class Destroyer formerly known as the Nathaniel M. Allen-Class, was originally a class of two Alliance destroyers. After the SSV Nathaniel M. Allen successfully engaged and destroyed a Cerberus cruiser, the Illusive Man had several spies implanted deep in the Alliance Navy to steal the blueprints. Once that was completed, Cerberus began construction of three new ships, dubbing them Charybdis-Class Destroyers. The class eventually became the heavy workforce of Cerberus's naval forces, partaking in ship-to-ship battles and planetary assaults, with a specialized variant designed for the transport of troops and materials: the Scylla-Class Light Carrier.

Trivia

 * The Charybdis and Scylla Classes are named after the monsters from Greek mythology, who guarded the sea of monsters, much like how the ships are sometimes used in a defensive role.