This is the standard microfusion warhead Seeker missile for the navy and police forces. A tried and tested design dating from the Independence War, its sensors and AI have been constantly upgraded and refined to keep it up to date with modern advances in countermeasure technology.
The Microfusion warhead system uses a mixture of Deuterium and Tritium and a tiny amount of antimatter. The antimatter acts as a detonator, as when it explodes it releases enough energy to catalyse the D-T fusion reaction.