Well to me subs have never been a giant threat. Then again, I have not gone against too many people who utilized them well enough for me to worry. But since one of the purposes of the destroyer was to hunt subs the rule of having a destroyer present for air attacks makes sense to me. Plus it makes the subs and destroyers each a tad more valuable to use.
To make a board game as authentic to real life as possible is kind of like taking a single frame from a movie. You won’t cover everything but you can at least get the gist of it. :wink: