User blog comment:Hayashi H/Winter 2016 Guide/@comment-27143098-20160226031326/@comment-26486243-20160228011228

Obviously it's too late for this event now since today is the last day, but some of these may apply to future events or other maps.


 * 1. Why would the usage of any FBBs reduce the chances of going to the boss?
 * Substitute the HP and Armor values into the calculator and see for yourself. Conceptually, how it works is that when a ship attacks at firepower cap (150) such as the Ru Kai or the Battleship Princess, fast battleships or worse, Fusou-class Kai Nis and some carriers, will be in the zone where their armor reduces the damage to the point that it does slightly less than max HP damage, which results in a high rate of instant taiha.


 * Heavy Cruisers have so little HP and Armor in comparison that more than 100% of their HP in damage is dealt, which triggers the taiha protection mechanic that makes the ship get hit for 50-80% of its current HP instead. Should the ship's current HP be 100%, that means the chance of taiha is only 5/30 ~ 16%, much less relative to the 30+% taiha chance possible on FBBs. Yamato-classes, however, have so much Armor and HP that Firepower-capped attacks are in general incapable of reducing them below 25% in one hit, so they're even more survivable than CAs. Of course, another factor is evasion as well, and CAs/DDs have significantly more evasion than FBBs so they're less likely to be hit in the first place.


 * 2. Won't BBs with high firepower and AP shells have a good chance of disabling or even sinking 1 BB hime or CV Hime? At least it seemed like the case for my fleet
 * That requires five conditions. First, a special attack must trigger. Second, the armor roll must be low or a critical hit must trigger. Third, your ship must be in shouha or better health. Fourth, your ships have to focus attacks on one target, or else they'll merely chuuha 4 ships. Finally, the engagement form has to be either parallel or Green T, unless your battleships in question are Yamato-class or Nagato-class with proto-51cms. It's not impossible for a ship to sink under these conditions, but it is exceedingly unlikely you sink more than one, and sinking even one isn't guaranteed if you spread damage around too much. Sinking Battleship Princess on the first node, in comparison, is much easier since you can concentrate the damage on the first two.


 * Since the Battleship Princess and Carrier Princess have 150+ Armor and the firepower cap is 150, regardless of which battleship you use, you will never strike harder than about 155 or so without a special attack even if your displayed firepower, say on Yamato, is 190 due to the square rooting effect. The advantage of Yamato (and a well equipped Nagato) is just that she can still do firepower-cap damage in a Head-on engagement form condition. As this limit is raised to 300 in yasen, it is trivial in comparison to sink any of these ships with one attack each with your yasen fleet. These bosses are designed to survive into yasen.


 * Should an armor roll be unfavourable for a BB's attack, it may deal damage only very slightly higher than the armor for the boss enemies, which will result in single digit damage numbers. This is unlikely in the CAs' case, as their firepower isn't high enough; since these bosses all have high health, attacks from anything dealing less than the armor roll deal scratch (~10% HP), and double attacks deal double scratch, which ends up doing more damage than something that hits harder. It's a similar paradoxical situation to the earlier one where weaker attacks may be stronger than stronger attacks. Unlike trying to sink it with harder attacks where you want your ships to focus their attacks on one target, scratching is most effective when the attacks are spread out among all four targets, and in general targeting RNG tends to spread attacks out.


 * 3 What guns are u using on your main fleet CAs, and what state of improvement are they at? (E.g. +6, +max etc). Sometimes, my BBs can't one shot Ru Kai BBs, so I'm amazed that your CAs can one-shot Ru kais.


 * Ru Kai have 110 Armor, so you can sink them quite reliably if you exceed 140 firepower. Choukai Kai Ni ended up using 2 SKC and 1 No.2 gun (1*), which deals a total of (85+10+10+9+5+1)*1.1 = 132 damage. On a double attack this is subject to a postcap multiplier of 120%*2, so she hits twice for 158.4 damage for an average of 48 damage per hit. At 130 HP, two double attacks will sink a Ru Kai, or a single critical hit (127 damage average for just one crit out of two attacks). If the Head-on engagement modifier is applied neither FBB nor CAs will be able to reliably sink the Ru Kai without either critical hits or Armor-Piercing Cut In, while Nagato and Yamato classes still can do so with double attacks.