The missile hunter would be bigger, would have poor manevraubility, would have a very big engine whit a lot of thrust and big guns and missiles. Enough to have speed and carrying weapons. If not a dedicated jet plane....
Explosive munition can be put on a gun on a aircrafts for defending against missiles? Point is that the pieces of steel eliberate by explosive munition can cover a aproximate direction in which the missile go. And can cover a lot of space by its 360 explosion