World 6

6-1

6-2

6-3

6-4

6-5

World 1

World 2

World 3

World 7

World 4

World 5

World 6

World 6-1: 中部海域哨戒線 Central Sea Combat Patrol Line

Strategy Name	潜水艦作戦 (Submarine Operation)
Difficulty	☆ ☆ ☆ ☆ ☆ ☆ ☆ ☆
Item	-
Strategy Content	有力な潜水艦隊を編成し、中部海域哨戒線に進出せよ。敵艦隊を発見、これを漸減撃滅せよ！ Organize a strong submarine fleet and advance a patrol line into the Middle Sea region. Locate enemy fleets and gradually destroy them!

6-1 CV Fleet
Fleet	1CV, 1CL, 1CLT, 3SS(V)
Route	C F G H K
Other Notes	Has a 15% chance to off-route to Node I
AP	AS	AS+
56	126	252

6-1 AS Fleet
Fleet	1AS, 1CL, 4SS(V)
Route	A F G H K
Other Notes
AP	AS	AS+
56	126	252

Map Unlocking & Progression

6-1 is unlocked after clearing 5-4 HP bar.

To clear the map, the boss's flagship must be sunk once.

Stage Guide

6-1 Branching Rules
Nodes		Rules
Start	A	Meet ANY of the following to FORCE B CA(V)+(F)BB(V)+CV(L/B) ≥ 3 (F)BB(V) ≥ 2 Meet ANY of the following to go to A Fleet contains SS(V) only Fleet contains AS and meets one of the following SS(V) ≥ 3, no other ship types allowed SS(V) = 3 and DD = 2 SS(V) = 4 and CL+DD = 1 Go to B if fleet contains no CL and DDs Otherwise, C
	B
	C
A	D	Fleet does not contains AS
	F	AS Is in the fleet
G	H	Meet ALL of the following requirements: Amount of SS(V) ≥ 3 Amount of BB(V) + CV(L/B) + CA(V) ≤ 1 Pass the LoS check: ≥ 16 (Cn4) Routing becomes random if 12 ≤ LoS ≤ 15.9 (Cn4)
	I	Meet ANY of the following requirements: Fail the LoS check Amount of SS(V) ≤ 2 Amount of BB(V) + CV(L) + CA(V) ≥ 2 If the fleet does not contain AS: 15% chance of off-routing to I regardless of LoS check result
H	E	Always node E if LoS ≤ 20 (Cn4) If the fleet contains AS: Always node K if LoS ≥ 25 (Cn4) Random between E and K if 20 ≤ LoS ≤ 24.9 (Cn4) If the fleet does not contain AS: Always node K if LoS ≥ 36 (Cn4) Random between J and K if 25 ≤ LoS ≤ 35.9 (Cn4) Random between E, J and K if 20 ≤ LoS ≤ 24.9 (Cn4)
	J
	K

Tips

• At least 3 SS(V) are required to reach the boss.
• There are LoS checks at G H and H K. They do not have high LoS requirements, but an all-submarine fleet without recons/radar can be sent to I.

Recommended Fleets

• 1CV, 1CL, 1CLT, 3SS(V)
• Route = C F G H K
  • Has a 15% chance to off-route to Node I
    • The CLT can be replaced with an AS to avoid this.
  • Most effective fleet for taking out the boss but it will have to go through node C where there's a Ru-class Flagship.
• Using a Midget Submarine
  
  on both the CL & CLT gives a powerful Opening Torpedo Salvo (Otorp).
• For the CV, either:
  • The CV may use several Jets
    , adding the Jet Assault phase to the already strong Otorp, allowing to wipe all pre-boss fleets before they can attack the fleet.
  • The CV should be equipped with a range extender to be set on Long Range, and so act first after the Opening phases (note that Jets also extend the range to long).
• Try to use a CVB so that it can attack even in Chuuha.

• 6SS(V)
• Route = A D F G H K
  • Allows the fleet to completely ignore any enemy ships that can't attack SSs, however node D is pretty harsh on SS with late-model DDs and flagship CLs.
  • Count on the Opening Torpedo Salvo (Otorp) & cut-in attacks (at boss), so only remodeled SS are recommended when using this composition.
  • Recon seaplanes or Submarine Radars
    
    may be used to meet the LoS requirements.
    • If opened, the Submarine Radars can be fitted in an Reinforcement Expansion.
  • As SSVs have few slots, only one may just carry all the seaplanes. As many combat-capable submarines as possible are needed for this route.

• 1AS, 1CL, 4SS(V)
• 1AS, 2DD, 3SS(V)
• Route = A F G H K
  • The shortest route in terms of the number of battles.
  • 1AS combined with at least 2 SS(V) unlock the "Submarine Touch", a special attack that can trigger several times on the map, consuming a Submarine Supply Material per battle.
  • The AS can equip recon seaplanes to free up slots for the SS(V)s.
  • A trade-off is that any enemy ship still in light damage or better shape at the end of the shelling phase will have fewer targets to launch their torpedoes at, so the AS and its escorts have to tank all the preboss ships that can't perform ASW.

Node I has some good drops like I-401 .

• To farm here, it is possible to use:
  • 1BB, 3CLT, 1CL, 1CV
  • 1CL, 3CLT, 2CV
  • Route = C F G I

Enemy Compositions

6-1 A

#	Empty Node
A	気のせいだった。/敵影を見ず。/穏やかな海です。/穏やかな海峡です。/警戒が必要です。/静かな海です。 Must be my imagination./No enemy spotted./Calm seas./Calm straits./Be alert./Peaceful seas.
#	Empty Node

6-1 B

#	Empty Node
B	気のせいだった。/敵影を見ず。/穏やかな海です。/穏やかな海峡です。/警戒が必要です。/静かな海です。 Must be my imagination./No enemy spotted./Calm seas./Calm straits./Be alert./Peaceful seas.
#	Empty Node

6-1 C: 中部海域　敵遊撃部隊 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
C	Double Line		8/16 35/69
	Line Ahead Double Line		8/16 35/69
	Line Ahead		8/16 35/69
#	Formation	Normal Battle Node	AD/AP AS/AS+

6-1 D: 中部海域哨戒戦 A地点 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
D	Line Ahead Diamond Echelon		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

6-1 E

#	Empty Node
E	気のせいだった。/敵影を見ず。/穏やかな海です。/穏やかな海峡です。/警戒が必要です。/静かな海です。 Must be my imagination./No enemy spotted./Calm seas./Calm straits./Be alert./Peaceful seas.
#	Empty Node

6-1 F: 中部海域哨戒戦 B地点 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
F	Double Line		0/0 0/0
	Double Line		0/0 0/0
	Diamond		0/0 0/0
	Double Line		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

6-1 G

#	Empty Node
G	気のせいだった。/敵影を見ず。/穏やかな海です。/穏やかな海峡です。/警戒が必要です。/静かな海です。 Must be my imagination./No enemy spotted./Calm seas./Calm straits./Be alert./Peaceful seas.
#	Empty Node

6-1 H: 中部海域哨戒戦 D地点 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
H	Echelon		0/0 0/0
	Diamond		0/0 0/0
	Double Line		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

6-1 I: 敵機動部隊 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
I	Diamond		61/121 270/540
	Diamond		33/65 144/288
	Diamond		57/113 252/504
#	Formation	Normal Battle Node	AD/AP AS/AS+

6-1 J: 中部海域 敵輸送船団 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
J	Line Ahead		0/0 0/0
	Line Ahead		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

6-1 K: 敵回航中空母 (PoiDB)

#	Formation	Boss Battle Node	AD/AP AS/AS+
K	Diamond Double Line		29/57 126/252
	Diamond		29/57 126/252
	Diamond		29/57 126/252
#	Formation	Boss Battle Node	AD/AP AS/AS+

Ship Drops

This map currently has "limited-time" drops, see Drop List for more info.

• The below table contains limited-time drop data and may not be up to date.

☑ All drops (enabled)☒ All drops (disabled, only rare drops)

Ship drops
Type	Ship?	C	D	F	H	I	J	K
SS	Maruyu					✓		✓
SSV	I-401					✓
AS	Taigei							✓
DD	Yukikaze							✓
DD	Makigumo							✓
DD	Naganami							✓
CL	Kitakami							✓
CL	Ooi							✓
CL	Nagara	✓	✓	✓	✓	✓	✓	✓
CL	Kinu							✓
CL	Sendai	✓	✓	✓	✓	✓	✓	✓
CL	Yuubari							✓
CA	Kinugasa							✓
CA	Myoukou		✓	✓	✓	✓	✓	✓
CA	Takao			✓	✓	✓	✓	✓
CA	Atago		✓	✓	✓	✓	✓	✓
CA	Mogami			✓	✓	✓	✓	✓
CA	Suzuya							✓
CA	Kumano							✓
CA	Tone				✓	✓	✓	✓
CA	Chikuma			✓	✓	✓	✓	✓
CVL	Ryuujou	✓	✓	✓	✓	✓	✓	✓
CVL	Shouhou	✓	✓	✓	✓	✓	✓	✓
CVL	Zuihou							✓
CVL	Hiyou	✓	✓	✓	✓	✓	✓	✓
CVL	Junyou	✓	✓	✓	✓	✓	✓	✓
FBB	Kongou				✓	✓	✓	✓
FBB	Hiei				✓	✓	✓	✓
FBB	Haruna				✓	✓	✓	✓
FBB	Kirishima				✓	✓	✓	✓
BB	Fusou							✓
BB	Yamashiro							✓
BB	Ise							✓
BB	Hyuuga							✓
BB	Nagato							✓
BB	Mutsu							✓
CV	Souryuu							✓
CV	Hiryuu							✓
SS	I-8				✓	✓		✓
SS	I-19			✓	✓	✓	✓	✓
SS	I-58				✓	✓	✓	✓
DD	Mutsuki	✓	✓	✓	✓	✓	✓
DD	Kisaragi	✓	✓	✓	✓	✓
DD	Satsuki	✓	✓	✓	✓	✓	✓
DD	Fumizuki	✓	✓	✓	✓	✓	✓
DD	Nagatsuki	✓	✓	✓	✓	✓	✓
DD	Kikuzuki	✓	✓	✓	✓	✓	✓
DD	Mikazuki	✓	✓	✓	✓	✓	✓
DD	Mochizuki	✓	✓	✓	✓	✓	✓
DD	Ayanami	✓	✓	✓	✓	✓	✓
DD	Shikinami	✓	✓	✓	✓	✓	✓
DD	Oboro	✓	✓	✓	✓	✓	✓
DD	Akebono	✓	✓	✓	✓	✓	✓
DD	Sazanami	✓	✓	✓	✓	✓	✓
DD	Ushio	✓	✓	✓	✓	✓	✓
DD	Samidare	✓	✓	✓	✓	✓
DD	Suzukaze	✓	✓	✓	✓	✓
CL	Tenryuu							✓
CL	Tatsuta							✓
CL	Kiso	✓	✓	✓	✓	✓	✓
CL	Isuzu	✓	✓	✓	✓	✓	✓	✓
CL	Natori	✓	✓	✓	✓	✓		✓
CL	Yura	✓	✓	✓	✓	✓	✓	✓
CL	Jintsuu	✓	✓	✓	✓	✓	✓	✓
CL	Naka	✓	✓	✓	✓	✓	✓	✓
CA	Furutaka	✓	✓	✓	✓	✓	✓	✓
CA	Kako	✓	✓	✓	✓	✓	✓	✓
CA	Aoba	✓	✓	✓	✓	✓	✓	✓
CA	Nachi	✓	✓	✓	✓	✓	✓	✓
CA	Ashigara	✓	✓	✓	✓	✓	✓	✓
CA	Haguro	✓	✓	✓	✓	✓	✓	✓
CA	Maya	✓	✓	✓	✓	✓	✓	✓
CA	Choukai	✓	✓	✓	✓	✓	✓	✓
CVL	Houshou							✓
SS	I-168	✓	✓	✓	✓	✓	✓	✓
AV	Chitose							✓
AV	Chiyoda							✓