Andrew, I applaud your persistence in including missile costs every time you post but it isn't in the rules as written to worry about such things.
Lets face it as written the CT/HG missile may as well be a magic missile - a 50kg missile that can accelerate at 6g for an hour and cause significant damage to a ship it doesn't even intercept (just has to be close).
LOL I include the missile costs because ignoring them (as HG does) is so very obviously and very badly broken.