Confused on orange ships/bonuses
So, looking thru the manual, and playing around in the game this past weekend after picking it up in the fire sale, I think I have most things figured out so far. Except the orange ships/modules. Pigamar modules and Rapid/Invul/Somethingorother Hulls come to mind. Sometimes different visuals, but more significantly, they always have some kind of bonus attached to them, that doesn't seem to work. Say +15 to missile units. Do these just not change the numbers on the module, or are they broken? And where do these items even fit in? They still have a racial attachment, but otherwise I don't understand their placement.