Destructive, as in how "destructive" is the 14" shell that just slammed into my battleship?
In Naval Surface Combat I can watch the action and see the text version of what is happening during the battle sequence. I can not the durability of a ship shown as a number. But, how destructive - how much numerical damage is being done - is that 5" shell or that 14" shell or lord forbid, that 18.1" shell? How much numerical damage is being done regardless of the critical hit if it penetrates the armor?
When a a surface battle (or air attack battle on ships or even submarine attack upon ships) is complete and I note that this destroyer took four 5" shells into it how much damage (as a rule of thumb?) has been done?
On that same thread... how much damage is being done with a "critical hit" on average?
If its not possible to have a rule of thumb then how in the world does one have any reference to how much damage is being done? IE. if a set of destroyers depth charges a sub and it takes 5 hits inboard allong with armor penetrations each time is that sub VERY damaged, SOMEWHAT damages, SLIGHTLY damged? After a while and several surface combats you really have no idea whether the enemy surface fleet will sortie again because you really have no idea how damaged it really is even though you know its prime Battleship took 12 500# bomb hits?
On a further note when a sub attacks a passing fleet and takes a strike at a particular ship then how many torpedoes are fired? Normally the combat results count one torpedo hit which is odd as a sub (American at least) could fire 4 from the front easy and would do so if the target was worthy. While some or most might miss I never see double torpedo hits or triple torpedo hits or quadruple, etc... why is this?

