Sentry autocannon

The Sentry autocannon is a line of naval coilguns used by the UNSC Navy during and after the Human-Covenant War.

M60 Sentry

 * Battleships
 * - 4x M60 Sentry turrets


 * Destroyers
 * - 6x M60 Sentry turrets
 * - 4x M60 Sentry turrets

M66 Sentry

 * Carriers
 * - 12x M66 Sentry turrets


 * Cruisers
 * - 8x M66 Sentry turrets
 * - 6x M66 sentry turrets
 * - 6x M66 Sentry turrets
 * - 4x M66 Sentry turrets
 * refit - 6x M66 Sentry turrets


 * Destroyers
 * - 6x M66 sentry turrets


 * Prowlers
 * - 4x M66 Sentry turrets