Introduce missile design "series" and "generations", e.g. "Sparrow-A", "Sparrow-B", "Sparrow-C", etc. such that Aurora knows that these all fulfill the same role in a load-out, and that the Sparrow-C is the most advanced version.
The idea here is to cut back on micro-management of (default) missile load-out of ships. The problem comes as new missile designs are introduced to replace obsolete ones - there usually aren't enough of the new time fill the magazines of all ships. For example, in my campaign, I've got Tomahawk-A, Tomahawk-B, and Tomahawk-C. If I could specify that my destroyers loaded "30 Tomahawk" (note the lack of a generation specifier), then all I would need to do is specify "load ordinance" and Aurora could use as many Tomahawk-C as available, followed by Tomahawk-B and Tomahawk-A. It Could also help during the missile design phase, since there's no (or at least I haven't found a ) "copy design" button. If instead there was a "new generation" button on Tomahawk-C, Aurora could use the same masses in Tomahawk-D - all I'd have to do is adjust them if I wanted e.g. to trade off speed for range in the "D" generation.
John