The ease of splitting up missiles into one-missile salvos is a bit of an elephant in the room. With small fire controls getting a great increase in capability this will not require design quirks in the future, but I still wonder how this should work.
Different missiles fired from the same FC split into multiple salvos.
It works with exact duplicates, although that definitely feels exploity.
It has to work if a speed difference... which can then be kept minimal so everything hits in the same tick.
It probably has to work with different sizes unless we want to open up other exploitable quirks.
In between, having it work with different sensors or agility ratings is at least plausible because we can expect subtly different behaviour throwing off PD.
However, if that works it would also be reasonable for missiles of one type to indtroduce deliberate variations to achieve the same effect, which would do away with the entire salvo concept.