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{{CombatPortal}}
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Artillery Spotting, commonly referred to as ''ArtySpot'', ''Daytime CI'', or simply ''Spotting'', is a series of special attacks that allow ships with specific equipment setups to perform Cut-in attacks during the Day Battle. These attacks grant '''post-cap''' damage bonuses as well as increased shelling accuracy.
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The Carrier-equivalent for Artillery Spotting is '''Aircraft Carrier Cut-in (CVCI)'''. Mechanically, they share the same core mechanics, but have different trigger conditions.
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=Artillery Spotting=
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Artillery Spotting is a feature for ships that can launch {{Seaplane}} [[Seaplane]]s. Using special equipment setups, those ships may perform one of multiple special attacks. These attacks are often referred to as Cut-ins due to the way the equipment is displayed in the screen before the attacks are performed. Particular Cut-ins are often referred to by their acronym, such as APCI for Main AP Shell Cut-in, Sec CI for Secondary Gun Cut-in, etc.
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Cut-ins may be activated during a ship's turn and will override its normal shelling attack. Do note that the specific equipment being shown during the Cut-ins have no influence on the damage output.
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==Trigger Conditions==
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[[File:Air_Superiority_Aquired.png|thumb|right|The fleet attains Air Supremacy. Artillery Spotting and Aircraft Carrier Cut-ins can now be performed]]
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* The fleet must have attained {{color|green|'''Air Superiority (AS)'''}} or {{color|green|'''Air Supremacy (AS+)'''}} Air State.
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** For details on Air State, please refer to [[Aerial Combat#Stage 1 - Battle for Air Superiority|Aerial Combat - Stage 1]]
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* The ship must be equipped with at least one {{SPR}}[[SPR|Seaplane Recon]] or {{SPB}}[[SPB|Seaplane Bomber]] on a slot with size '''higher than 0'''.
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** {{SeaplaneFighter}} [[SPF|Seaplane Fighters]] or {{YellowPlane}} [[:Category:Carrier-based Reconnaissance Aircraft|Reconnaissance Aircraft]] '''do not''' enable Artillery Spotting.
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** '''Main Suisei Cut-in''' specifically ignores this condition.
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* The ship must be equipped with at least one {{RedGunHeavy}}{{RedGunMedium}}{{RedGunLight}}{{Main Green}} '''[[Main Gun]]'''.
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* The ship must target another ship and attack it with Surface Shelling.
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** ASW shelling has no Artillery Spotting setups.
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* The ship must not be {{color|red|'''Heavily damaged (大破)'''}}
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==Setups and Attack Types==
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[[File:Main_Main_Cutin.png|thumb|right|Musashi performing Main AP Shell Cut-in (APCI)]]
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Different setups have different conditions, trigger rates, damage, and number of hits. Cut-ins are determined by the attack's prerequisites as well as the previously stated trigger conditions.
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For a given Cut-in, any other equipment can be added on the remaining slots. Be wary that adding certain equipment may change the Cut-in that will be rolled. Meeting prerequisites for multiple Cut-ins grants each a chance to be activated: in this case, the Cut-ins will be rolled in order of priority from '''top to bottom'''.
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For clarity purposes:
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* {{Large Gun}} is used to indicate a '''[[Main Gun]]''' of ''any size'',
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* {{Seaplane}} is used to indicate a '''"[[Seaplane]]" ''' ([[SPR|Recon]] or [[SPB|Bomber]]),
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* {{Sec Gun}} is used to indicate a '''[[Secondary Gun]]''' of ''any size'',
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* {{AP Shell}} is used to indicate an '''[[AP Shell]]''',
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* {{Radar}} is used to indicate a '''[[Radar]]''' of ''any type'',
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* {{RedPlane}} is used to indicate any '''{{Equipment/Link|Suisei Model 22 (634 Air Group)|Suisei Model 22 (634 Air Group/Skilled)|Suisei Model 12 (634 Air Group w/ Type 3 Cluster Bombs)|text="634 Air Group" Suiseis}}'''.
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* {{ZuiunPlane}} is a custom icon used to indicate any '''Zuiun''' variant:
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{{Zuiun}}
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{|class="wikitable" style="text-align:center; margin:auto"
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!Attack Type
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!Prerequisites
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![[Damage_Calculations#Damage_Formula|Post-cap]]<br>Damage<br>Modifier
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!Accuracy<br>Modifier
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!Hits
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!Notes
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|-
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!style="background-color:#ff7f50" |{{color|black|Main Zuiun Cut-in<br>(Zuiun CI)}}
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|{{RedGunHeavy}}{{ZuiunPlane}}{{ZuiunPlane}}
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|1.35||?||1
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|rowspan=2|{{Ship/Link|Ise/Kai Ni|Hyuuga/Kai Ni|text=''Ise''-class Kai Ni|link_class=Ise}} only
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|-
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!style="background-color:#ff7f50" |{{color|black|Main Suisei Cut-in<br>(Suisei CI)}}
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|{{RedGunHeavy}}{{RedPlane}}{{RedPlane}}
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|1.3||?||1
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|-
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!style="background-color:#81c784" |{{color|black|Main AP Shell Cut-in<br>(APCI)}}
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|{{RedGunHeavy}}{{RedGunHeavy}}{{Seaplane}}{{RedAmmo}}
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|1.5||1.2||1
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|
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|-
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!style="background-color:gold"|{{color|black|Secondary AP Shell Cut-in<br>(Sec APCI)}}
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|{{RedGunHeavy}}{{YellowGun}}{{Seaplane}}{{RedAmmo}}
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|1.3||1.3||1
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|
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|-
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!style="background-color:gold"|{{color|black|Secondary Radar Cut-in<br>(Radar CI)}}
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|{{RedGunHeavy}}{{YellowGun}}{{Seaplane}}{{Radar}}
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|1.2||1.5||1
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|
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|-
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!style="background-color:gold"|{{color|black|Secondary Cut-in<br>(Sec CI)}}
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|{{RedGunHeavy}}{{YellowGun}}{{Seaplane}}
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|1.1||1.3||1
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|
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|-
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!style="background-color:#59f"|{{color|black|Double Attack<br>(DA)}}
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|{{RedGunHeavy}}{{RedGunHeavy}}{{Seaplane}}
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|1.2||1.1||2
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|
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|}
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* If all rolls fail or the ship meets no Cut-in requirements, then it'll perform a Single Attack: a default 1 hit, no damage modifier shelling attack.
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* If an Artillery Spotting attack is evaded, it will deal [[Damage_Calculations#Chip_Damage|chip damage]] instead.
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* If valid set-ups for both Suisei-CI and Zuiun-CI are used, only the Zuiun-CI may trigger.
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=Aircraft Carrier Cut-In=
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Aircraft Carrier Cut-in, or CVCI for short, is a feature for ships that can launch {{BluePlane}}{{RedPlane}}{{GreenPlane}}Carrier-based planes. Similar to Artillery Spotting, using special equipment setups, those ships may perform one of multiple special attacks.
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CVCI may be activated during a ship's turn and will override its normal shelling attack.
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==Trigger Conditions==
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* The fleet must have attained <span style="color:green;">'''Air Superiority (AS)'''</span> or <span style="color:green;">'''Air Supremacy (AS+)'''</span> Air State.
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** For details on Air State, please refer to [[Aerial Combat#Stage 1 - Battle for Air Superiority|Aerial Combat - Stage 1]]
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* The carrier must fulfill one of the equipment setups.
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* The carrier must be shelling a '''surface ship'''.
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** Installations cannot be attacked by CVCI.
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==Setups and Attack Types==
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[[file:CVCI_Example.png|thumb|right|Zuihou performing Fighter-Bomber-Attacker Cut-in (FBA)]]
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Different setups have different conditions, trigger rates, damage, and number of hits. Cut-ins are determined by the attack's prerequisites as well as the previous state trigger conditions.
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For a given Cut-in, any other equipment can be added to the remaining slots. Be wary that adding certain equipment may change the Cut-in that will be rolled. Meeting prerequisites for multiple Cut-ins grants each a chance to be activated: in this case, the Cut-ins will be rolled in order of priority from '''top to bottom'''.
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* {{BluePlane}} is used to indicate a '''[[Torpedo Bomber]]'''. In the game, is referred to as ''Attacker''.
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* {{RedPlane}} is used to indicate a '''[[Dive Bomber]]'''. In the game, is referred to as ''Bomber''.
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* {{GreenPlane}} is used to indicate a '''[[Fighter]]'''.
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{|class="wikitable" style="text-align:center; margin:auto"
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!Attack Type
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!Prerequisites
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![[Damage_Calculations#Damage_Formula|Post-cap]]<br>Damage<br>Modifier
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!Accuracy<br>Modifier
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!Hits
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|-
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!style="background-color:#81c784" |{{color|black|Fighter-Bomber-Attacker<br>(FBA)}}
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|nowrap|{{GreenPlane}}{{RedPlane}}{{BluePlane}}
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|1.25||1.2~1.3?||1
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|-
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!style="background-color:#ff7f50" |{{color|black|Bomber-Bomber-Attacker<br>(BBA)}}
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|nowrap|{{RedPlane}}{{RedPlane}}{{BluePlane}}
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|1.2||1.2~1.3?||1
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|-
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!style="background-color:#59f" |{{color|black|Bomber-Attacker<br>(BA)}}
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|nowrap|{{RedPlane}}{{BluePlane}}
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|1.15||1.2~1.3?||1
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|}
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* If all rolls fail or the ship meets no Cut-in requirements, then it'll perform a Single Attack: a default 1 hit, no damage modifier shelling attack.
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* If a CVCI attack is evaded, it will deal [[Damage_Calculations#Chip_Damage|chip damage]] instead.
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'''Note:''' The Critical Damage modifier granted by Aircraft [[Proficiency#Critical Bonus|Proficiency]] works differently when performing a CVCI.
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=Trigger Rates=
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Artillery Spotting and Aircraft Carrier Cut-Ins share the same trigger rate formula. The chance of successfully rolling and triggering a cut-in is mainly affected by the [[Air State]] and the "raw [[LoS]]", as well as some other factors like the type of CI, the ship's luck, and the Recons/Bombers currently in the fleet.
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{|class="wikitable mw-collapsible mw-collapsed" width="100%"
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!colspan=2|Trigger Rates
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|-
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!width=20px|<div style=writing-mode:vertical-rl;transform:rotate(180deg); text-align:left;>Trigger rate</div>
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|
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The chance for a ship to roll a cut-in and perform it is given by:
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{|style="padding:10px; margin:20px; border:1px solid orange; border-radius:10px"
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|valign="center"|  <math>\text{Trigger %}_\text{Cut-in} = \dfrac{\text{Base}_\text{ship}}{\text{Base}_\text{attack}} \times 100</math>
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|}
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|-
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!width=20px|<div style=writing-mode:vertical-rl;transform:rotate(180deg); text-align:left;>''Base ship</div>
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|
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{|style="padding:10px; margin:20px; border:1px solid orange; border-radius:10px"
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|valign="center"|  <math>\text{Base}_\text{ship} = \left \lfloor
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10 + \lfloor \sqrt{\text{Luck}} \rfloor + \text{Mod}_\text{AS1} + \text{Mod}_\text{Flag}
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\left \lfloor
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\left(
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\text{LoS}_\text{Fleet} + \text{Mod}_\text{AS2} \times \text{LoS}_\text{Ship}
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\right)
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\right \rfloor \times \text{Mod}_\text{AS3}
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\right \rfloor
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</math>
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|}
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;With
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* <math>\text{Mod}_\text{ASx}</math> the [[Air State]] modifiers:
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{|class="wikitable"
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!Mod!!AS!!AS+
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|-
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|<math>\text{Mod}_\text{AS1}</math>||0||10
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|-
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|<math>\text{Mod}_\text{AS2}</math>||1.2||1.6
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|-
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|<math>\text{Mod}_\text{AS3}</math>||0.6||0.7
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|}
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* <math>\text{Mod}_\text{Flag}</math> being '''15''' if the ship is the flagship, '''0''' otherwise,
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* <math>\text{LoS}_\text{Ship}</math> the Sum of the equipment's displayed base LoS values (excluding [[Visible Bonus]]es) on the attacking ship,
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* <math>\text{LoS}_\text{Fleet} = \left \lfloor \sqrt{\text{Total}_\text{LoS}} + \frac{\text{Total}_\text{LoS}}{10} \right \rfloor</math>
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** Where <math>\text{Total}_\text{LoS} = \sum^{\text{All ships}}\text{Base}_\text{LoS} + \sum^{\text{All Recons/Bombers}}\text{Equip}_\text{LoS} \times \lfloor\sqrt{\text{Count}_\text{Plane}}\rfloor</math>
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*** <math>\text{Base}_\text{LoS}</math> being the ships' base LoS value without any equipment,
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*** <math>\text{Equip}_\text{LoS}</math> being the displayed base LoS value of Recons/Bombers (excluding [[Visible Bonus]]es) currently in the fleet.
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*** <math>\text{Count}_\text{Plane}</math> being the count of each individual Recons/Bombers currently in the fleet.
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|-
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!width=20px|<div style=writing-mode:vertical-rl;transform:rotate(180deg); text-align:left;>''Base attack</div>
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|
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<math>\text{Base}_\text{attack}</math> is the "Value" used by each type of Cut-in:
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{|class="wikitable"
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!<math>\text{Base}_\text{attack}</math>
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!Value
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!''% per Base Value
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|-
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!colspan=3|Artillery Spotting
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|-
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|Main Zuiun Cut-in||120||0.83%
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|-
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|Main Suisei Cut-in||130||0.77%
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|-
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|Main AP Shell Cut-in||150||0.66%
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|-
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|Secondary AP Shell Cut-in||140||0.71%
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|-
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|Secondary Radar Cut-in||130||0.77%
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|-
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|Secondary Cut-in||120||0.83%
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|-
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|Double Attack||130||0.77%
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|-
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!colspan=3|Aircraft Carrier Cut-ins
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|-
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|Fighter-Bomber-Attacker||125||0.86%
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|-
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|Bomber-Bomber-Attacker||135||0.80%
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|-
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|Bomber-Attacker||150||0.66%
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|}
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|}
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=See Also=
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{{Mechanics}}
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