The assault concussion missile was a capital ship grade concussion missile in use by capital ships.

AdvancedConcussionMissiles TimothyBenZweifel

A Victory-class Star Destroyer launching assault concussion missiles.

Exponentially more powerful than smaller versions commonly used on starfighters, these heavy missiles were primarily used for planetary bombardment and anti-capital ship duty, and were typically carried aboard heavier warships such as destroyers like the Victory I-class Star Destroyer and Nebula-class Star Destroyer, and battleships like the Executor-class Star Dreadnought, the Assertor-class Star Dreadnought, and Viscount-class Star Defender.

A standard assault concussion missile could severely damage a capital ship, with rarely more than a handful being needed to destroy a target completely.