Spaceships: Missile launchers and their individual mass

[Cuddle_Fish]

This touches on something I've been wondering for awhile - missiles, if one looks at both aircraft and naval vessels, in my understanding typically aren't carried in launchers that are reloaded in operation. You don't [as far as I am aware] have a magazine of 20 missiles to go with a single launcher system, you have an array of launchers - or just a few missiles, much larger relative to the platform carrying them than Spaceships missiles seem to be.

I've been wondering how to make something more like an Osa Class missile boat (http://en.wikipedia.org/wiki/Osa_class_missile_boat) - a small ship which carries a few very large, powerful missiles with the expectation being that once it fires it's payload it bugs out and goes home / is sunk / achieves some other form of resupply.

How would you guys represent this sort of "Single Missile / Small Number of Missiles" system in Spaceships? Similarly - is the "Magazine" of missiles intended to represent a large number of launchers rather than something where it's reloaded? If so, shouldn't the rate of fire be higher than that of a large gun, given you only need the time to lock a new target, prepare the missile to fire, etc?