Talk:Early Fall 2018 Event/@comment-32936293-20180923084053/@comment-174.109.56.139-20180923085653

That sounds like scratch damage to me. All ships are immune to "chipping death" or as it's more commonly called, scratch damage; I don't remember the specifics off the top of my head but I believe when an attack calculation results in the attack being negated by the target's armor value, it results in a "scratch" which becomes a proportional damage; sometimes you WANT scratch attacks because they can take large chunks out of high-health enemies, but because it's a percentage of their remaining health, it is impossible to kill an enemy with scratch damage. That combined with it being highly difficult to kill subs at nighttime will result in the poor performance you're seeing.