Jeff Hopper said:So why aren't any of these possible explanations in the playtest and eventual book?
Because how an ion cannon actually works is dependent upon the setting - remember, High Guard is not a 3I book, but an all-universe book. Some settings won't have ion cannons at all, and will just ignore them, but they need to be in the High Guard because some settings will.
Think of High Guard as a tool kit that allows you to pick and choose what you want, and then decide how things actually fit in and work, if that becomes important.
That is very much in the spirit of Traveller
