Spring 2025 Event/E-4

The 2nd Stage Operations have been released!
FF release: TBA

Approximate time until the end of the event: ([2] KC 12th anniversary)

23 April 2025 11:00:00 +0900 Event Has Ended!

Spring 2025 Event Hub Overview
Introduction & Overview	1st Stage Operations	2nd Stage Operations
Introduction & Overview	E-1 \| E-2 \| E-3	E-4 \| E-5 \| E-6

Information
Event Tag	Southwestern Area Unit Operation Rei-go Unit
Boss Gauges	Hard (甲): 3000 HP + 750 TP + ?? HP
	Medium (乙): ?? HP + ?? TP + ?? HP
	Easy (丙): ?? HP + ?? TP + ?? HP
	Casual (丁): ?? HP + 350 TP + ?? HP
Map Bosses	Aircraft Carrier Princess Kai
	Aircraft Carrier Princess Kai
	Destroyer Ra-Class Initial Model II

Rewards[edit]
Choice	丁 Casual	丙 Easy	乙 Medium	甲 Hard
Bauxite	1200	1600	2000	3000
OR
New Model Gun Mount Improvement Material	1	1	1	2
THEN
Action Report			1	1
OR
Reinforcement Expansion		1	1	2
THEN
Barrage Balloon		1	1	1
OR
Development Material		8	10	10
THEN
Development Material				50
OR
Special Type 2 Amphibious Tank				2
THEN
Prototype Myoujou (Additional Trial Model)	1
Myoujou Kai		1
Fuel			3000	4500
OR
Emergency Repair Goddess	1	1	2	3

Reward	丁 Casual	丙 Easy	乙 Medium	甲 Hard
Food Supply Ship Irako	1	2	3	4
Medal				1
Type 99 Training Bomber Model 22 Kai (Experimental w/ Night Equipment)			1	1 (★2)

The event guides are to be constructed through the respective 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

E-4 Branching Rules ▼/▲ (Single Fleet)
Nodes		Rules
A	B	Active Branching
A	D	Active Branching
B	C	[Phase 1-2] Fixed Route [Phase 3] Meet ALL of the following requirements: Fast+ Fleet Amount of SS(V) = 0
	S	Does not meet the requirements to go to T
	T	Meet ALL of the following requirements: Amount of DD ≥ 3? Does not meet the requirements to go to C
C	U	Fixed Route *
D	E	Does not meet the requirements to go to F
D	F	Meet ALL of the following requirements: Fast Fleet Amount of (F)BB(V) + CV(B) ≤ 2 Amount of CV(B) ≤ 1 Amount of CV(B/L) ≤ 2 Amount of DD ≥ 2
F	F1	Active Branching
F	G	Active Branching
G	G1	Active Branching
G	H	Active Branching
G1	G2	Route to I locked Does not meet the requirements to go to I
G1	I	Meet ALL of the following requirements: Route to I unlocked Fast Fleet * Amount of (F)BB(V) + CV(B) ≤ 2 Amount of CL ≥ 1 Amount of DD ≥ 2
I	J	Does not meet the requirements to go to L Pass the LoS check
	K	Fail the LoS check
	L	Meet ALL of the following requirements: Fast Fleet * Amount of Yamato-class ships = 0 Amount of (F)BB(V) + CV(B) ≤ 2 Amount of DD ≥ 2 Pass the LoS check
M	N	Does not meet the requirements to go to O
M	O	Meet ALL of the following requirements: Amount of Yamato-class ships = 0 Amount of CL ≥ 1 Amount of DD ≥ 2
P	Q	Fail the LoS check
P	R	Pass the LoS check
U	V	Fail the LoS check
U	W	Pass the LoS check

E-4 Branching Rules ▼/▲ (Combined Fleet)
Nodes		Rules
A	B	Active Branching
A	D	Active Branching
D	S	Fixed Route *
B	C	Meet ALL of the following requirements: Fast+ Fleet Amount of SS(V) = 0 If amount of SS(V) ≥ 1, then amount of AS ≥ 1
	S	Does not meet the requirements to go to T
	T	Meet ALL of the following requirements: Amount of CV(B) ≤ 2 Amount of DD ≥ 3? Amount of SS(V) = 0 * Does not meet the requirements to go to C
C	U	Does not meet the requirements to go to W
C	W	Meet ALL of the following requirements: Fast Fleet Amount of Yamato-class ships = 0 If Fast+ Fleet, then amount of Yamato-class ships ≤ 1 Amount of DD ≥ 6 If Fast+ Fleet, then amount of DD ≥ 5 ???* If Fast+ Fleet AND amount of DD = 4, then Matsu/Take/Kaya ≥ 1 Pass the LoS check
T	C	Meet ANY of the following requirements: Slow Fleet If Fast Fleet, then amount of (F)BB(V) + CV(B) ≥ 3 If Fast Fleet, then amount of DD ≤ 5
T	U	Does not meet the requirements to go to C
U	V	Fail the LoS check
U	W	Pass the LoS check