I am working on a rigger character, who is the captain of a Spitzenreiter (Arsenal p. 111), and I while I do not intend it to become a warship, I do want to equip some kind of weapon on a heavy mount. This weapon should be powerful enough to knock out a patrol boat, long ranged enough to hit enemies without getting within range of enemy fire, and capable of hitting land, sea and air-based targets. Furthermore, I would like my character to carry a laser designator when running on land, and be able to use it to call in fire support from his ship several kilometers inland. I don't mind if the ammo is expensive and/or hard to come by, as I do not intend to spam it.
I am thinking that a mortar with seeker bombs might be the easiest solution, but even with an airburst link I doubt that it would handle airborne threats very well.
Any thoughts?