View source for Early Spring 2023 Event/E-4

{{:{{ROOTPAGENAME}}/Hub}}
{{EventInfoBox
|title_en= I-Go Transport Operation
|title_jp= 伊号輸送作戦
|tag= [[File:{{ROOTPAGENAME}} Tag 1.png]]
|tag2= [[File:{{ROOTPAGENAME}} Tag 6.png]]
|header_thumb=[[File:{{ROOTPAGENAME}} E-4 Boss Thumb.png]]
|tag_text= '''{{Shiplock|{{ROOTPAGENAME}} Tag 1}} Yokosuka Defence Squadron<br>{{Shiplock|{{ROOTPAGENAME}} Tag 6}} Operation I-go Fleet
|map_1=[[File:{{ROOTPAGENAME}} E-4 Map.png|450px]]
|map_1_text=Map
|map_2=[[File:{{ROOTPAGENAME}} E-4 Map Phase 0,5.png|450px]]
|map_2_text=Phase 0.5
|map_3=[[File:{{ROOTPAGENAME}} E-4 Map Phase 1.png|450px]]
|map_3_text=Phase 1
|map_4=[[File:{{ROOTPAGENAME}} E-4 Map Phase 1,5.png|450px]]
|map_4_text=Phase 1.5
|map_5=[[File:{{ROOTPAGENAME}} E-4 Map.png|450px]]
|map_5_text=Phase 2
|map_6=[[File:{{ROOTPAGENAME}} E-4 LBAS Range.png|450px]]
|map_6_text=LBAS
|boss_hard= 800 TP + 2100 HP
|boss_medium= 600 TP + 2100 HP
|boss_easy= 450 TP + 2100 HP
|boss_casual= 400 TP + 2100 HP
|reward_all=
|phase_1_boss= {{EnemyLink|Light Carrier Nu-Class Flagship|text= Light Carrier Nu-Class B Flagship}}
|phase_2_boss= {{EnemyLink|Seaplane Tender Princess}}
|phase_3_boss= 
|phase_4_boss=
|phase_5_boss=
|rewards = E-4
}}

{{center|[[File:{{ROOTPAGENAME}} E-4 Ooyodo.png|440px]]}}

The event guides are to be constructed through the respective [[/Sandbox|Event map page guide sandbox]] and reviewed by editors before being approved here. 
*'''Do not update the guides through this page unless it is a minor fix.''' Please only update guides through their respective sandbox pages.

==Branching Table==
{{MapBranchingTable
|title = E-4 Branching Rules
|id = 56-4
|order = A,B,D,G,H,I,M,P,S
|A/empty -> B,D = Active Branching 
|B -> C = * Meet '''ALL''' of the following requirements:
** Amount of CL ≥ 1 or amount of DD ≥ 5
** If fleet contains (F)BB(V) or CVL, amount of CL ≥ 1
** Does not meet the requirements to go to G
|B -> E/red/darkorange = Does not meet the requirements to go to C
|B -> G/empty = * Meet '''ALL''' of the following requirements:
** Fast fleet
** Fleet contains only CL + DD
** Amount of CL ≥ 1
** Amount of DD ≥ 5
|D -> E/red/darkorange = ???
|D -> F/red/darkorange = * Does not meet the requirements to go to H
|D -> H/pink = * Meet '''ALL''' of the following requirements:
** Amount of BBV = 0
** Amount of CVL ≤ 1
*** If single fleet, amount of CVL = 0
** Amount of CL ≥ 1
** Amount of DD ≥ 4
*** If fleet contains AV, (F)BB, CAV or CLT, amount of DD ≥ 5
|G/empty -> H/pink,I/night = Active Branching 
|H/pink -> I/night = * Phase 1: Fixed routing
* Phase 2: Unreachable
|H/pink -> P/pink = * Meet '''ALL''' of the following requirements:
** Amount of (F)BB = 0
** Amount of BBV ≤ 1
** If fleet contains CVL, amount of AV = 0
|H/pink -> Q = * Does not meet the requirements to go to P
|I/night -> J/pink = * Does not meet the requirements to go to K
|I/night -> K = * Meet '''ALL''' of the following requirements:
** Fleet does not contain (F)BB(V) or CAV
** Amount of CVL ≤ 1
** Amount of CL ≥ 1
** Amount of DD+DE ≥ 4
** Does not meet the requirements to go to L
|I/night -> L/pink = * Meet '''ALL''' of the following requirements:
** Node L is unlocked
** Fleet does not contain (F)BB(V) or CVL
** Amount of CL ≥ 1
** Amount of DD+DE ≥ 5
|M/resource -> N/empty = * Fail the LoS check
|M/resource -> O = * Pass the LoS check (Cn2=31 '''Hard''')
|P/pink -> Q = * Does not meet the requirements to go to R
|P/pink -> R/empty = * Meet '''ALL''' of the following requirements:
** Fast Fleet
** Amount of (F)BB(V) = 0
** Amount of CVL = 0
** Amount of DD = 5
|S/night -> T = * ???
|S/night -> U/empty = * Fail the LoS check
|S/night -> V = * Pass the LoS check (Cn2=37 '''Hard''')
* ???
}}

Branching compositions were reported over the course of the event. ([https://bbs.nga.cn/read.php?pid=514129578 NGA] and [https://tsunkit.net/nav/#/ KCNav])

==Historical Bonuses==
{{/Historical Bonuses}}

==Map Overview==
E-4 consists of 2 main phases and requires the use of Strike Forces

* This map uses 2 locks:
** [[File:{{ROOTPAGENAME}} Tag 1.png]] '''Yokosuka Defence Squadron''' (from E-1),
** [[File:{{ROOTPAGENAME}} Tag 6.png]] '''Operation I-go Fleet'''
** {{TextGlow|'''Both tags can be mixed in all difficulties'''|black|text-colour=Lime|glow-size=2px}}, see ''[[#Branching Table|here]]''.

* 2 [[LBAS]] are available to sortie into this map.
** One additional LBAS is available to be set to defend on this map
* '''[[Early Spring 2023 Event#New Mechanics|"Airstrike Supported Battle" node]]''' is present on {{MapRoute|F|darkorange}}
* '''"Night Battle" nodes''' are present on {{MapRoute|I|purple|S|purple}}

==Phase 0.5 - Unlock TP Phase==
{|class="wikitable" 
!      !! K !! J  
|-
|Hard  || S x2|| AS x2
|-
|Medium|| S x2|| AS 
|-
|Easy  || S x2|| - 
|-
|Casual|| A+|| -
|}

<tabber>
|-|Node J=
* Striking Force: '''0-1/AV, 1-2CVL, 0-1CAV, 1CL, 3-4DD''' [[File:{{ROOTPAGENAME}} Tag 1.png|30px]][[File:{{ROOTPAGENAME}} Tag 6.png|30px]]
* Route: {{MapRoute|1||A|blue|B|red|C|red|G|blue|I|purple|J|pink}}
** AP/AS: '''112/251''' (Hard)
*** This AS value only applies to 2 out of 3 compositions, it is possible to roll a significantly harder composition at 192/431 AP/AS
**2CVL '''or''' a CAV (not CA) are needed to route to J.

|-|Node K=
* Single Fleet // Striking Force: '''1CL, 5-6DD''' [[File:{{ROOTPAGENAME}} Tag 1.png|30px]][[File:{{ROOTPAGENAME}} Tag 6.png|30px]]
* Route: {{MapRoute|1||A|blue|B|red|G|blue|I|purple|K|red}}
** Having less DD will route to {{MapRoute|C|red}}.
</tabber>

==Phase 1 - TP==
Phase 1 is a '''"[[Transport Operation]]"''':

* Single Fleet // Striking Force: '''1CL, 5-6DD''' (Fast) [[File:{{ROOTPAGENAME}} Tag 1.png|30px]][[File:{{ROOTPAGENAME}} Tag 6.png|30px]]
* Route: {{MapRoute|1||A|blue|B|red|G|blue|I|purple|L|pink|M|green|O|red}}
* LoS check: 30~31 Cn2 (Hard)
* LBAS: Range 8, 56/112 AD/AP
** Bringing an [[AACI]] capable ship is recommended to pass through the air node.
** An {{FCF}} [[Elite Torpedo Squadron Command Facility]] or [[Striking Force Fleet Command Facility]] may also be utilized.

==Phase 1.5 - Gimmick==
{|class="wikitable" 
!      !! S
|-
|Hard  || S x3
|-
|Medium|| S x2
|-
|Easy  || A+ x2
|-
|Casual|| A+ x2
|}

;Node S
*Use [[#Phase 2]]'s fleet

==Phase 2==
* Striking Force: '''1CA(V)/CL/AV, 1CL, 5DD''' (Fast) [[File:{{ROOTPAGENAME}} Tag 1.png|30px]][[File:{{ROOTPAGENAME}} Tag 6.png|30px]]
* Route: {{MapRoute|1||D|red|H|pink|P|pink|R|blue|S|purple|V|red}}
* LBAS: Range 7, 131/261 AD/AP on Hard
** Bringing an [[AACI]] capable ship is recommended to pass through the air nodes.

==Enemy Compositions==
{{/Enemy comps}}
==Ship Drops==
{{/Ship drops}}
{{clear}}
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