World 6/6-1

Information

Central Waters Patrol Line 中部海域哨戒線
Information
Special Mechanics	LoS Check
Experience	HQ: 180 non-boss, 2160 boss Ship: 380
Boss gauge (HQ 120)	Easy: ? HP World 6/Info/Easy HP Medium: ? HP World 6/Info/Medium HP Hard: ? HP World 6/Info/Hard HP
Kills required
Rewards
Casual: Easy: Medium: Hard:
In-game description
Operation	潜水艦作戦 Submarine Operation
Task	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 to a patrol line of Central Waters. Locate enemy fleets and gradually destroy them!

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	No AS 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 of 16 using the F33(Cn=4) formula Routing becomes random if the LoS is between 12-15.9 using the F33(Cn=4) Formula
	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 is ≤ 20 using the F33(Cn=4) Formula If the fleet contains AS: Always node K if LOS is ≥ 25 using the F33(Cn=4) Formula Random between E and K if LOS is between 20-24.9 using the F33(Cn=4) Formula If the fleet does not contain AS: Always node K if LOS is ≥ 36 using the F33(Cn=4) formula Random between J and K if LOS is between 25-35.9 using the F33(Cn=4) Formula Random between E, J and K if LOS is between 20-24.9 using the F33(Cn=4) Formula
	J
	K

Tips

• At least 3 SS(V) are required to reach the boss.
• This map uses the F33(C_n=4) formula, this means that LoS from equipments weights 4 times more than usual.
• There are LoS checks G -> H and H -> K. They do not have high LoS requirements (SSVs with a couple recon planes will pass), but an all-sub fleet without recon planes will be sent to I.
• LoS requirements to reach the boss node are lower if the fleet contains AS
  :
  • Required LoS value if the fleet contains AS
    : F33(C_n=4) ≧ 25
  • Required LoS value if the fleet does not contain AS
    : F33(C_n=4) ≧ 36
• To trigger Night Scout at boss node, you need either Air Denial (28-56 FP), Air Superiority (126+ FP) or Air Supremacy. Night Scouts cannot be triggered if the day combat is done in Air Parity (with 57-125 FP when the boss battle starts).

Possible Fleet compositions

• C F G H K
  • 1CLT 1CL 1CV(L) 3SS(V)
    • an effective fleet for taking out the boss but it will have to go through node C where there's a Ru-class BB. Note that this fleet can send you to dead end node I.
• A D F G H K
  • 6SS(V)
    • An all-sub fleet will reach the boss with sufficient LoS, however, node D is pretty harsh on subs with late-model DDs and flagship CLs.
    • AS
      in a sub fleet avoids the battle in Node D by leading the fleet to node A -> F which can be very helpful. When she is equipped with recon seaplanes, she then allows all your subs to equip torpedoes while passing the LoS check.
• A F G H K
  • 1AS 1CL 4SS(V)
    • another possible way to clear this map and also quest B91 with AS
      loaded with bulges and recons. CL recommended are Ooyodo Kai for extra slot or Abukuma Kai Ni for opening torpedo.
• C F G I (for farming node I)
  • 1BB 3CLT 1CL 1CV
  • 1CL 3CLT 2CV
    • Pattern 1 on node I has a chance to drop I-401.
    • Both fleets guarantee the routing to node I and are good enough to get S Rank.

Enemy patterns

Start A B C D F G I H E J K

Drop list

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

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