So, I was thinking.
We all know that submarines cannot be hit if there are no enemy destroyers present.
We also know from history, that bombers could drop sonar buoys to locate enemy submarines.
Since submarines cannot hit aircraft, we can’t just assume a strat. bomber can offer unlimited shots by enemy fighters on submarines - it would break the game, IMHO. So what if….
Attackers can attack defending submarines, even without a destroyer, if (and only if) the attacker has at least one naval ship with a combat rating greater than or equal to a value of 1, AND, an attacking strategic bomber.
Note, this would not help on defense against submarines, because strategic bombers cannot be scrambled or stationed over sea zones anyway.
It’s just a thought. Could be especially helpful in the pacific and southern atlantic because of the range of bombers and the distance from industrial complexes to get new ships out.