View source for Early Spring 2024 Event/E-4

{{:{{ROOTPAGENAME}}/Hub}}
{{EventInfoBox
|title_en= New Operation Z Kai
|title_jp= 新Z作戦改
|tag= [[File:{{ROOTPAGENAME}} Tag 8.png]]
|tag2= [[File:{{ROOTPAGENAME}} Tag 10.png]]
|tag3= [[File:{{ROOTPAGENAME}} Tag 9.png]]
|tag4= [[File:{{ROOTPAGENAME}} Tag 11.png]]
|header_thumb=[[File:{{ROOTPAGENAME}} E-4 Boss Thumb.png]]
|tag_text= {{Shiplock|{{ROOTPAGENAME}} Tag 8}} '''3rd Fleet'''<br>{{Shiplock|{{ROOTPAGENAME}} Tag 9}} '''Wake Island Transport Unit'''<br>{{Shiplock|{{ROOTPAGENAME}} Tag 10}} '''The New Tatsumaki Fleet'''<br>{{Shiplock|{{ROOTPAGENAME}} Tag 11}} '''Op. Z Decisive Battle Fleet'''
|map_1=[[File:{{ROOTPAGENAME}} E-4 Map Phase 4.png|450px]]
|map_1_text=Map
|map_2=[[File:{{ROOTPAGENAME}} E-4 Map Phase 0.3.png|450px]]
|map_2_text=Phase 0.3
|map_3=[[File:{{ROOTPAGENAME}} E-4 Map Phase 0.6.png|450px]]
|map_3_text=Phase 0.7
|map_4=[[File:{{ROOTPAGENAME}} E-4 Map Phase 1.png|450px]]
|map_4_text=Phase 1
|map_5=[[File:{{ROOTPAGENAME}} E-4 Map Phase 2.png|450px]]
|map_5_text=Phase 2
|map_6=[[File:{{ROOTPAGENAME}} E-4 Map Phase 3.png|450px]]
|map_6_text=Phase 3
|map_7=[[File:{{ROOTPAGENAME}} E-4 Map Phase 4.png|450px]]
|map_7_text=Phase 4
|map_8=[[File:{{ROOTPAGENAME}} E-4 Map LBAS Range.png|450px]]
|map_8_text=LBAS
|boss_hard= 5880 HP + 900 TP + 4000 HP + 4200 HP
|boss_medium= 4800 HP + 800 TP + 3600 HP + 2900 HP
|boss_easy= 4800 HP + 700 TP + 3600 HP + 2880 HP
|boss_casual= 3600 HP + 600 TP + 2800 HP + 1600 HP
|phase_1_boss= {{EnemyLink|New Mass-Produced Aircraft Carrier Princess}}
|phase_2_boss= {{EnemyLink|Battleship Ru-Class Flagship}}
|phase_3_boss= {{EnemyLink|Atoll Aircraft Carrier Anchorage Princess}}
|phase_4_boss= {{EnemyLink|Abyssal I-go Water Princess}}
|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 (Start Points) ▼/▲
|id = 58-4a
|0 -> 1 = * Single Fleet
* CTF
* STF until point 3 is unlocked and does not meet the requirements to start at point 2
* TCF until point 2 is unlocked
|0 -> 2 = * STF: Fleet contains 1-2BBV/CAV 1-2CL/CT 8-9DD/DE/AO/AS/LHA
* TCF
|0 -> 3 = * STF: Does not meet the requirements to start at point 2
}}

{{MapBranchingTable
|title = E-4 Branching Rules (Start Point 1) ▼/▲
|id = 58-4b
|order = 1,A,A1,B,C,D,E,F,F1,J,J1
|1 -> A/battle = * Does not meet the requirements to go to A1
|1 -> A1/battle = * Meet '''ALL''' of the following requirements:
** Single: Fast Fleet
** Single: If Slow Fleet, amount of AS + SS(V) ≥ 1 ('''Easy/Medium/Hard''')
** If Slow Fleet, then amount of Yamato-class ships ≤ 1
** Amount of CV(B) ≤ 4
** Node P is unlocked: Does not meet the requirements to go to P
|1 -> P/pink = * Single Fleet
* Meet '''ANY''' of the following requirements:
** Amount of DD + DE ≥ 3 ('''Casual''')
** Amount of SS(V) ≥ 1 ('''Casual''')
** Amount of SS(V) ≥ 2 ('''Easy''')
** Amount of SS(V) ≥ 3 ('''Medium''')
** Amount of SS(V) ≥ 4
** Amount of AS ≥ 1 and amount of SS(V) ≥ 3
|A/battle -> A1/battle = * Does not meet the requirements to go to B
|A/battle -> B/empty = * Meet '''ALL''' of the following requirements:
** CTF/STF
** Amount of CV(B) ≤ 3
** If amount of Yamato-class ships = 1, then amount of DD ≥ ?
** If amount of Yamato-class ships = 2, then amount of DD ≥ 4
|A1/battle -> A2/pink = * Single Fleet
|A1/battle -> B/empty = * CTF/STF
|B/empty -> C/battle, D/battle = Active Branching
|C/battle -> C1/pink = * Meet '''ALL''' of the following requirements:
** Amount of AV ≤ 1
** If Slow Fleet, then amount of CV(B/L) ≤ 3
** If Slow Fleet, then amount of CA(V) ≤ 2
|C/battle -> C2/battle = * Does not meet the requirements to go to C1
|D/battle -> D1/battle = * Meet '''ALL''' of the following requirements:
** Amount of (F)BB = 0 
** Amount of CVL ≥ 1 OR amount of CL ≥ 2
** Amount of DD ≥ 3
*** If amount of CV(B) ≥ 3, then amount of DD ≥ 4
|D/battle -> D2/battle = * Does not meet the requirements to go to D1
|E/battle -> F/battle = * Does not meet the requirements to go to F1
|E/battle -> F1/pink = * Meet '''ALL''' of the following requirements:
** Amount of (F)BB(V) + CV(B/L) ≤ 5
*** If Slow Fleet, then amount of (F)BB(V) + CV(B/L) ≤ 4
** Amount of DD ≥ 3
*** If amount of Yamato-class ships = 1, then amount of DD ≥ 4
*** If amount of Yamato-class ships = 2, then amount of DD ≥ 5
|F/battle -> F1/pink = * Routed thru C1 *
|F/battle -> J1/battle = * Routed thru P *
|F1/pink -> F2/empty = * Fail the LoS check *
|F1/pink -> G/battle = * Pass the LoS check *
|J/pink -> F/battle = * Does not meet the requirements to go to J1 
|J/pink -> J1/battle = * Meet '''ALL''' of the following requirements:
** Single Fleet
** Amount of (F)BB(V) + CV(B/L) = 0
** Amount of SS(V) ≥ 4 ('''Hard''')
|J1/battle -> J2/battle = * Does not meet the requirements to go to Q
* Further routing unknown
|J1/battle -> Q/pink = * Meet '''ALL''' of the following requirements:
** Amount of (F)BB(V) + CV(B) ≤ 1 *
** Amount of ships in fleet ≥ 6
** Does not meet the requirements to go to R
|J1/battle -> R/battle = * Meet '''ALL''' of the following requirements:
** Amount of AS ≥ 1 ('''Easy/Medium/Hard''')
** Amount of AV ≤ 1 
*** If amount of AV = 1, then amount of SS(V) ≥ 4 ('''Easy/Medium/Hard''')
** Amount of (F)BB(V) + CV(B/L) + CA(V) = 0 ('''Easy/Medium/Hard''')
** Amount of DD ≤ 2 ('''Easy/Medium/Hard''')
** If amount of CL = 1, then amount of DD = 2 *
** Amount of ships in fleet ≥ 6
** Fleet contains AS OR fleet contains 1CL 3DD ('''Casual''')
** Amount of CAV ≤ 1 ('''Casual''')
}}

{{MapBranchingTable
|title = E-4 Branching Rules (Start Point 2) ▼/▲
|id = 58-4c
|order = H,I1,J,J1,J2,L,M
|H/empty -> I/battle = * Slow Fleet
|H/empty -> J/pink = * Fast Fleet
|I1/battle -> I2/pink = ???
|I1/battle -> I3/pink = ???
|J/pink -> F/battle = * Phase 3+: Does not meet the requirements to go to J1 ('''Casual/Easy/Medium''')
* Phase 3+: Fixed Route ('''Hard''') *
|J/pink -> J1/battle = * Phase 2: Fixed Route
* Phase 3+: Amount of BBV + CVL = 0 ('''Casual/Easy/Medium''') *
|J1/battle -> J2/battle * Fixed Route
|J2/battle -> K/red/darkblue = ???
|J2/battle -> L/battle = * Does not meet the requirements to go to M
|J2/battle -> M/empty = * Amount of DD ≥ 8
|L/battle -> M/empty = * Fixed Route *
|M/empty -> N/empty = * Fail the LoS check
|M/empty -> O/battle = * Pass the LoS check
}}

{{MapBranchingTable
|title = E-4 Branching Rules (Start Point 3) ▼/▲
|id = 58-4d
|order = 3,F,J2,L,U,V,X
|3 -> F/battle = * Does not meet the requirements to go to T
|3 -> T/battle = * Meet '''ALL''' of the following requirements:
** If Slow Fleet, then amount of CVL ≤ 2
** If amount of Yamato-class ships = 2, then amount of DD + DE ≥ 5
|F/battle -> U/pink = * Meet '''ALL''' of the following requirements:
** Amount of (F)BB(V) ≤ 2 *
*** If amount of (F)BB(V) = 3, then amount of DD + DE ≥ 4 *
|J1/battle -> J2/battle = * Fixed Route
|J2/battle -> K/red/darkblue = ???
|J2/battle -> L/battle = * Does not meet the requirements to go to V
|J2/battle -> V/battle = * Meet '''ALL''' of the following requirements:
** Amount of CV(B/L) ≤ 2
** Amount of DD + DE ≥ 5 *
|L/battle -> M/empty = * Fixed Route *
|U/pink -> J2/battle = * Does not meet the requirements to go to V
|U/pink -> V/battle = * Meet '''ALL''' of the following requirements:
** Amount of CL ≥ 2
** If Slow Fleet, amount of CV(B) = 0
** If Slow Fleet, amount of CVL ≤ 1
|V/battle -> W/gray = * Fleet contains AR, AO? or Akitsushima Kai
|V/battle -> X/pink = * Does not meet the requirements to go to W
|X/pink -> Y/empty = * Fail the LoS check
|X/pink -> Z/battle = * Pass the LoS check
}}
<nowiki>*</nowiki> = Rule under review

? = Ship type/amount under review


Branching compositions are reported over the course of the event. 
*Please refer to [https://tsunkit.net/nav/#/ KCNav] for up to date map content (fleets used, LoS/speed requirements/drops/LBAS ranges, ...)

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

==Map Overview==
E4 is a Combined fleet four-phase map consisting of one transport phase and three boss phases.
* 3 [[LBAS]] are available to sortie on this map.

* This map uses 4 locks:
** [[File:{{ROOTPAGENAME}} Tag 8.png|40px]] '''3rd Fleet''' (phase 1, combined),
** [[File:{{ROOTPAGENAME}} Tag 9.png|40px]] '''Wake Island Transport Unit''' (phase 2, combined),
** [[File:{{ROOTPAGENAME}} Tag 10.png|40px]] '''The New Tatsumaki Fleet''' (phase 3, striking force),
** [[File:{{ROOTPAGENAME}} Tag 11.png|40px]] '''Op. Z Decisive Battle Fleet''' (phase 4, combined).

*An '''[[Emergency Anchorage Repair]] node''' is present on {{MapRoute|W|lightblue}},
*An '''[[Node|"Airstrike Supported Battle" node]]''' is present on {{MapRoute|K|darkorange}},
*Node {{MapRoute|S|Red}} is an "atoll node", where the new {{Amphibious Tank}} {{Equipment/Link|Special Type 4 Amphibious Tank|Special Type 4 Amphibious Tank Kai|text=Ka-Tsu tanks|link=Ka-Tsu}}' opening can be deployed.

==Phase 0.3: Gimmick 1==
The following steps have to be performed to unlock the next phase.

{|class="wikitable" 
! !! A3!! C!! D
|-
| Hard|| Sx2|| Sx2|| Sx2
|-
| Medium|| Sx2|| Sx2|| Sx2
|-
| Easy|| S?|| S?|| S?
|-
| Casual|| A|| S?|| S?
|}

<tabber>
|-|Node A3=
* Single/SF: '''0-2 (F)BB(V)/CVL, 0-1 CA(V)/CLT, 1 CL, 3-4 DD''' [[File:{{ROOTPAGENAME}} Tag 8.png|40px]]
* Route: {{MapRoute|1||A1|red|A2|pink|A3|red}}
* LBAS range: 4

|-|Node C=
Refer to [[#Phase 1: Boss 1]]'s fleet for composition and routing.
* STF/CTF [[File:{{ROOTPAGENAME}} Tag 8.png|40px]]
* Route: {{MapRoute|1||A|red|B|blue|C|red}}
* LBAS range: 1

|-|Node D=
Refer to [[#Phase 1: Boss 1]]'s fleet for composition and routing.
* STF/CTF [[File:{{ROOTPAGENAME}} Tag 8.png|40px]]
* Route: {{MapRoute|1||A|red|B|blue|D|red}}
* LBAS range: 2
</tabber>

==Phase 0.7: Gimmick 2==
The following steps have to be performed to unlock the next phase.

{|class="wikitable" 
! !! C1!! C2!! D1!! D2
|-
| Hard|| AS|| S|| S|| S
|-
| Medium|| AS|| S?|| A+|| S?
|-
| Easy|| AS|| S?|| A+|| S?
|-
| Casual|| AS|| S?|| A+|| S?
|}

<tabber>
|-|Node C1=
Refer to [[#Phase 1: Boss 1]]'s fleet for composition and routing.
* STF/CTF [[File:{{ROOTPAGENAME}} Tag 8.png|40px]]
* Route: {{MapRoute|1||A|red|B|blue|C|red|C1|pink}}
* LBAS range: 3

{|class="wikitable" 
!      !! AS
|-
|Hard  || 486
|-
|Medium|| 431
|-
|Easy  || 378
|-
|Casual|| 254
|}

|-|Node C2=
* STF/CTF: '''[[#Phase 1: Boss 1]]'s fleet, SLOW with 4+ CV(B/L)''' [[File:{{ROOTPAGENAME}} Tag 8.png|40px]]
* Route: {{MapRoute|1||A|red|B|blue|C|red|C2|red}}
* LBAS range: 2

|-|Node D1=
* CTF: '''2 CV(B), 1CVL, 2 CA(V), 1 CL/DD + 1 CA(V), 1 CL, 4 DD''' [[File:{{ROOTPAGENAME}} Tag 8.png|40px]]
* Route: {{MapRoute|1||A|red|B|blue|D|red|D1|red}}
* LBAS range: 2
**[[ASW]] is required to secure the S rank.

|-|Node D2=
Refer to [[#Phase 1: Boss 1]]'s fleet for composition.
* STF/CTF [[File:{{ROOTPAGENAME}} Tag 8.png|40px]]
* Route: {{MapRoute|1||A|red|B|blue|D|red|D2|red}}
* LBAS range: 3
</tabber>

==Phase 1: Boss 1==
The boss is the new {{EnemyLink|New Mass-Produced Aircraft Carrier Princess}}, with up to 3 of them in Hard LD.

<tabber>
|-|Fast=
* CTF/STF: '''2 (F)BB(V), 2-3 CV(B/L), 1-2 CAV/CL/DD + 0-2 CA(V)/CLT, 1 CL, 3-5 DD, Fast ''' [[File:{{ROOTPAGENAME}} Tag 8.png|40px]]
* Route: {{MapRoute|1||A1|red|B|blue|C|red|C1|pink|E|red|F1|pink|G|red}}
**This is the most advised fleet, as it brings the best balance of power.
**4 DD are needed when using a {{Class|Yamato}}, and 5 DD with both.

|-|Slow=
* CTF: '''2 (F)BB(V), 2 CV(B/L), 1-2 CA(V)/AV, 0-1 CL/DD + 0-1 CA(V), 1 CL, 3-5 DD, Slow''' [[File:{{ROOTPAGENAME}} Tag 8.png|40px]]
* Route: {{MapRoute|1||A|red|B|blue|C|red|C1|pink|E|red|F1|pink|G|red}}
**Equivalent to the fast fleet, being more permisive for slow ships, but with one less carrier.
**4 DD are needed when using a {{Class|Yamato}}, and 5 DD with both.

|-|CV Focus=
* CTF: '''3 CV(B), 1 CVL, 1 CAV, 1 CL/DD + 1-2 CA(V)/CLT, 1 CL, 3-4 DD''' [[File:{{ROOTPAGENAME}} Tag 8.png|40px]]
* Route: {{MapRoute|1||A1|red|B|blue|C|red|C1|pink|E|red|F1|pink|G|red}}
**This fleet brings the highest air power, helping reaching AS on the boss.
**This fleet lacks a special attack, and will require more luck and carrier crits during shelling to deal significant damage to the bosses.
</tabber>

*LoS check: ??
* LBAS range: 5
* AP/AS:
**307/690 (Hard pre-LD)
**449/1008 (Hard LD)
*Bringing an [[AACI]] and several [[OASW]] is recommended.
**With air power that high, it is most likely that the boss will be fought under AD in last dance, requiring appropriate setups.
*All LBAS should be sent to the boss
*Using both an ASW node support expedition and a boss support expedition is recommended.
*The use of [[Special Attacks]] is recommended, especially the [[Yamato]] touch, as this can be a fast fleet touch.
*Using {{Smoke}} [[Smoke]]s can help a little, to pass through node {{MapRoute|C|red}} only.

==Phase 2: TP==
Phase 1 is a '''"[[Transport Operation]]"'''.

* TCF: '''1-2 AV, 0-1 [[CVE]]/CL, 4-5 DD + 1-2 CL, 4-5 DD, Fast''' [[File:{{ROOTPAGENAME}} Tag 9.png|40px]]
* Route: {{MapRoute|2||H|blue|J|pink|J1|red|J2|red|M|green|O|red}}
*LoS check: 75~80 (Cn3, Hard)
*LBAS range: 9

*As many {{Landing Craft}} [[Landing Craft]], {{Drum}} [[Drum Canister]]s, and {{Amphibious Tank}} [[Amphibious Vehicle]]s as possible should be utilized in the fleet.
*Bringing an [[AACI]] and several [[OASW]] is recommended.

==Phase 3: Boss 3==
The boss node is an "atoll node", meaning that it is possible to deploy the new {{Amphibious Tank}} {{Equipment/Link|Special Type 4 Amphibious Tank|Special Type 4 Amphibious Tank Kai|text=Ka-Tsu tanks|link=Ka-Tsu}}' opening.
*The new [[Atoll Aircraft Carrier Anchorage Princess]] is not an "[[Installation]]".

<tabber>
|-|AS Fleet=
* Striking Force: '''1 AS, 4-5 SS(V), 0-1 AV, 1-2 DD''' [[File:{{ROOTPAGENAME}} Tag 10.png|40px]]
* Route: {{MapRoute|1||P|pink|J|pink|J1|red|R|red|S|red}}
* This fleet can utilize the "Submarine Touch", a {{Submarine Touch}}

|-|No-AS Fleet=
* Striking Force: '''4 SS(V), 1 CAV, 1 CL, 1 AV''' [[File:{{ROOTPAGENAME}} Tag 10.png|40px]]
* Route: {{MapRoute|1||P|pink|J|pink|J1|red|Q|pink|R|red|S|red}}

</tabber>
* LBAS range: 9
* Having an [[AACI]] is recommended.
* The use of the {{Smoke}} [[Smoke]] is discouraged as it does not protect the subs.
*[[PT boat]]s are present in the boss comp:
{{Anti-PT Imp Setups}}
Using the Ka-Tsu tanks attacks is mandatory in higher difficulties:

{{:Ka-Tsu}}
When using it, it is better to have pairs of Ka-Tsu on the historical ships, and normal [[Night Cut-in]]s for the other ones.

==Phase 4: Boss 4==
The boss is the new {{EnemyLink|Abyssal I-go Water Princess}} submarine.

* STF: '''1-2 BBV/CV(E), 0-1 CAV, 3-5 CL, 0-1 DD/DE + 1 CL, 3-5 DD, 0-2 DE''' [[File:{{ROOTPAGENAME}} Tag 11.png|40px]]
* Route: {{MapRoute|3||T|red|U|pink|V|red|X|pink|Z|red}}
**LoS check: 45 (Cn1 Hard)
**LBAS range: 10
*As the flagship boss is a submarine, it is possible and heavily advised to focus the fleet on ASW only and snipe the boss.
*As many [[OASW]] as possible ships should be utilized in the escort fleet.
**The flagship should then be [[Hyuuga Kai Ni]], [[Kaga Kai Ni Go]], or any [[CVE]] Kai Ni, as they have good ASW stat in addition of being able to equip fighters.
*The main fleet should maintain high [[ASW]], with additional roles such as:
**One [[AACI]] ship,
**{{IconText|{{CommandFacility}}|FCF}} {{Equipment/Link|Fleet Command Facility|text=FCF}} on the flagship,
**{{SPF}}/{{Fighter}} on the BBV/CAV/CL for air power
**{{Smoke}} [[Smoke]]s for better on route survability.
**LoS ships for routing.
*The [[LBAS]] can be either:
**Surface focused to clear the boss escort or the pre-boss nodes (recommended),
**ASW focused to damage the boss (not recommended).
*As it is a combined fleet, it is possible to kill the submarine boss even on night battle.

==Phase 4.5: Debuff==
Once LD has been reached, the following steps have to be performed to debuff the boss.
*Debuff might be optional for most players, as the boss ASW snipe is generally enough to kill the boss.

{|class="wikitable" 
!       !! A3!! C2!! D2!! F1!! O    !! S    !! X !! LBAS
|-
| Hard  || S || S || S || AS|| A+ x2|| A+ x2|| AS|| AS
|-
| Medium|| ?|| ?|| ?|| ?|| ?|| ?|| ?|| ?
|-
| Easy  || ?|| ?|| ?|| ?|| ?|| ?|| ?|| ?
|-
| Casual|| ?|| ?|| ?|| ?|| ?|| ?|| ?|| ?
|}

<tabber>
|-|Node A3=
Refer to [[#Phase 0.3: Gimmick 1]]'s fleet for composition and routing.

|-|Node C2 & D2=
Refer to [[#Phase 0.7: Gimmick 2]]'s fleets for compositions and routings.

|-|Node F1=
Refer to [[#Phase 1: Boss 1]]'s fleet for composition and routing.
{|class="wikitable" 
!      !! AS
|-
|Hard  || 684
|-
|Medium|| 431
|-
|Easy  || 378
|-
|Casual|| 254
|}

|-|Node O=
Refer to [[#Phase 2: TP]]'s fleet for composition and routing.

|-|Node S=
Refer to [[#Phase 3: Boss 3]]'s fleet for composition and routing.

|-|Node X=
Refer to [[#Phase 4: Boss 4]]'s fleet for composition and routing.
{|class="wikitable" 
!      !! AS
|-
|Hard  || 867
|-
|Medium|| 756
|-
|Easy  || 687
|-
|Casual|| 470
|}
* These are the highest values for AS taken from Last Dance Compositions, there's a chance AS value could be lower than the one shown in the table.

|-|LBAS=
* Set all 3 LBAS on defense with good [[interceptor]]s.
</tabber>

Once Debuff is complete the CG will change to the following:
{|class="wikitable"
![[Abyssal I-go Water Princess]]
|-
|<gallery>
Enemy Full Abyssal I-go Water Princess Flagship.png|Regular
Enemy Full Abyssal I-go Water Princess Flagship Damaged.png|Last Dance
Enemy Full Abyssal I-go Water Princess Flagship Debuffed.png|Debuffed
</gallery>
|}

{{clear}}

==Enemy Compositions==
{{/Enemy comps}}
==Ship Drops==
{{/Ship drops}}
{{clear}}
{{:{{ROOTPAGENAME}}/Hub}}


==Trivia==
Soon™