Diligence-class destroyer

The Diligence-class destroyer was a class of destroyer in service with the UNSC Navy and the Colonial Military Administration.
== Operational history ==
Entering into service in 2433, the Diligence-class was originally classified as a cruiser, before being reclassified as a destroyer later in its life to better reflect the evolving standard of ship construction.
Some Diligence-class destroyers were operated by the Colonial Military Administration as peacekeeping ships. By 2525, the class had been retired for decades. However, with the dawn of the Great War, some were brought back into service with the UNSC Navy and were retrofitted for combat against the Galactic Empire.
At least one Diligence-class destroyer, the Kronstadt, participated in Operation: GREY VEIL in 2545. This ship's status following the operation is unknown.
== Design details ==
=== Superstructure ===
The Diligence-class is 550 meters in length, with a hull structure composed of several rectangular sections mounted onto each other, increasing in size from bow to stern. The rear of the ship houses at least four impulse drives.
=== Armament ===
Due to its original classification as a cruiser, as well as being designed and constructed before the widespread deployment of modern Magnetic Accelerator Cannons, the Diligence's primary offensive armament comprises two forward-fixed Mark 117 32-inch super-heavy railguns. Secondary armament comprises four Mark 229 14-inch/50-caliber railgun batteries, forty M35 Ares missile launchers, and forty M133 Equalizer PDCs.