旧倍率で計算される連合艦隊梯形陣 | Combined fleet echelon using old values

[Tibowl]

Description The shelling damage modifier for echelon when using it in Combined Fleet (via entering a Night Battle Node) is still set at 60% instead of 75%. This can be observed through measuring the damage of Support Shelling, which uses the shelling modifier of the formation.

Reproducing Steps to reproduce the behavior:

1. Sortie a combined fleet to a night battle node
2. Measure support shelling damage

TODO: add source/test

[kaedec-adm]

Japanese Translation: タイトル：旧倍率で計算される連合艦隊梯形陣

説明 連合艦隊で梯形陣を選択した場合（夜戦マスでの戦闘）、攻撃力の陣形補正は75%ではなく60%に設定されたままである。これは陣形補正を使用する支援砲撃のダメージを測定することで確認できる。

バグの再現方法 バグを再現するために、必要な手順を説明してください：

1. 連合艦隊を夜戦マスに出撃させる
2. 支援砲撃ダメージを測定する

TODO: source/testの追加

[fourinone41]

12v6 and 6v12 single fleet also use old 60% shelling damage modifier for echelon (player in 6v12, enemy in 12v6).

It is recognised by JP wiki and Nishisonic's abnormal damage calculator.

Data evidence: 12v6: https://kc3kai.github.io/kancolle-replay/battleplayer.html?fromImg=https://cdn.discordapp.com/attachments/206118707158712320/859394706652004352/fourinone_4092.png 2020-07-22, Summer 2020 E4 Node X Red T, Summer BBH -> Akizuki, 37 -> 1, means no overkill 53 armour rolls -> min 37, max 68 242*.75*.6 - 36 = 72.9, not within rolls 242*.6*.6 - 36 = 51.12, within rolls

6v12: https://kc3kai.github.io/kancolle-replay/battleplayer.html?fromImg=https://cdn.discordapp.com/attachments/206118707158712320/860069643329994752/694feb6e-3b1b-45da-a44f-6f7bcffbf4b6.png Fleet: https://cdn.discordapp.com/attachments/206118707158712320/860069702012239912/unknown.png 2021-07-01, 6-5 Node M Green T, Hyuuga -> I-class LM, 98 damage no crit 22 armour rolls -> min 15, max 28 168*.75*1.2 - 98 = 53.2, not within rolls 168*.6*1.2 - 98 = 22.96, within rolls

6v12: https://kc3kai.github.io/kancolle-replay/battleplayer.html?fromImg=https://cdn.discordapp.com/attachments/206118707158712320/860075022895153172/e7d5913f-59d1-40df-8f45-c4a6ba8781b9.png 2021-07-01