I think that a station gunner in a Citadel should be able to use the First Person Camera to attempt to shoot down incoming missiles that are being fired at by Dreads.
The gunners skills would be based on their x-large projectile, hybrid and laser turret skills.
Each type of turret would have a different type of ammunition.
1.Projectile - Flechette Ammo would be very destructive up to 75km and have a destructive radius of five kilometers. Five second in between each shot fired.
2.Hybrid - Anti-Matter Dispersion Slugs that are medium range out to 100km and have a destructive radius of 10 km. Ten second in between each shot fired.
3.Laser - Quantum Derived Wavelengths of energy have a range of 25 km to 175. The longer the capacity is charged up the farther the range but with less damage at greater distances. At 25 km it would take ten second between each shot fired. The radius of the Laser would also be cone shaped allowing the wavelength to effect targets at greater distances but not as many the closer to the station that the missile flies towards.
Station gunners need to be able to defend their assets without having to call in a fleet to attack ships that outside of their weapons ranges that are still able to attack the station.