Warhead module

The Warhead module was a section of starships used as a last resort weapon.

The module made up the nose section of the, including the deflector dish, and had a separate miniature impulse engine to propel the warhead, armed with magazine of sex photon torpedoes, to it's target. (DS9 reference: Technical Manual)

In April 2376 Ezri Dax and Nog fired the USS Defiant (NX-74205) (II)’s warhead module to destroy the last of three Jem'Hadar fighters which had launched an attack on Deep Space 9. (DS9 novel: Avatar)