@auricocorico groundfiring subs is the biggest navy has apparently. I get that subs don't really have a role atm. At least on setons. But battleships groundfiring is not the issue. I totally agree with turin here.
It annoys me though that the only efficient counter to harms is groundfiring it.
Torpedobombers can not kill it mass efficiently if you have well placed sams behind it that are out of range of battleships which don't push into harms range. Pretty sure every sub/destro gets absoluetly melted by harms as well.
Groundfiring harms is just another navy apm drain that gives huge benefits and isn't fun at all. And depending on the faction it can take ages to kill them.
I would prefer if they weren't groundfireable but had less hp so that suiciding torps into them would result in a 1:1 kill loss ratio.