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World 7/7-5

< World 7
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Missing Information: branching, drops, enemy comps, air power.

World 7-5:【Extra Operation】 ジャワ島沖 Off Java Island

 
Strategy Name
スラバヤ沖海戦・バタビア沖海戦 (Battle of Surabaya and Battle of Batavia)
Difficulty
☆☆☆☆☆☆☆☆☆☆☆
Item
None
Strategy Content
ジャワ島東部に攻略部隊を揚陸する！有力なる艦隊でスラバヤ沖にて敵の迎撃戦力を撃破し、敵残存艦隊も猛追！撃滅せよ！
Land an attack force on the Eastern Java Island! Off Surabaya, defeat an enemy interception force with your strong fleet. Chase and annihilate enemy survivors!
Phase 1
Fleet 3-4CL(T), 2-3DD
1(F)BB(V), 0-1CA(V), 1-2CL(T), 3-4DD
Route A B D F G H K
Other Notes
AP AS AS+
0 0 0
Phase 2
Fleet 1BBV, 1CAV 1CL, 3DD
Route A B D F J O Q
Other Notes Installation
AP AS AS+
0 0 0
Phase 3
Fleet 1(F)BB(V)/CVL, 1CA(V), 1CL, 3DD
Route A B D F J O P T
Other Notes
AP AS AS+
0 0 0

Map Unlocking

7-5 is unlocked after clearing 7-4 HP bar once.

Stage Guide

7-5 Branching Rules
Nodes Rules
B
C
  • Does not meet the requirements to go to D
D
  • Meet ALL of the following requirements:
    • Amount of CA(V) ≤ 2
    • Amount of CL ≥ 1
    • Amount of DD ≥ 2
      • If (F)BB(V) ≥ 2, then amount of DD ≥ 3
      • If CV(B) ≥ 1, then amount of DD ≥ 3
      • If CVL ≥ 2, then amount of DD ≥ 3
  • Otherwise, fleet is Fast+
D
E
  • Does not meet the requirements to go to F
F
  • Meet ALL of the following requirements:
    • Amount of (F)BB(V) + CV(B) + CA(V) ≤ 2
    • Amount of CV(B/L) ≤ 2
    • Amount of CL + DD ≥ 3
      • If (F)BB(V) = 2, then amount of CL + DD ≥ 4
      • If fleet is Fast+, then amount of CL + DD ≥ 1 (?)
  • Otherwise, fleet is Fastest
F
J
  • Active Branching
G
H
K
  • Active Branching
I
I
L
  • Fail the LoS check
M
  • Pass the LoS check (Cn4 ≥ 57(?))
J
N
  • Does not meet the requirements to go to O
O
  • Meet ALL of the following requirements:
    • Amount of CV = 0
    • Amount of CVL ≤ 1
    • Amount of (F)BB(V) + CA(V) ≤ 2
    • For Slow fleet:
      • If (F)BB(V) ≥ 1, then amount of DD ≥ 3
      • If CLT ≥ 1, then amount of DD ≥ 3
      • If CL ≥ 2, then amount of DD ≥ 3
  • Otherwise, fleet is Fast+
O
P
  • Active Branching
Q
P
R
  • Does not meet the requirements to go to T
  • Pass the LoS check (Cn4 ≥ 63(?))
S
  • Fail the LoS check
T
  • Meet ALL of the following requirements:
    • Amount of CV = 0
    • Amount of (F)BB(V) + CVL ≤ 1
    • Amount of (F)BB(V) + CA(V) ≤ 2
    • Amount of CL ≥ 1
    • Pass the LoS check (Cn4 ≥ 58(?))
  • Otherwise, fleet is Fastest


Ship Bonuses

DISCLAIMER: This information is based on user-submitted data and is subject to revisions as more data is gathered. Any version of the ship receives the bonus regardless of remodel.

Ships [1][2] Nodes B, C, D, E, J Nodes G, K, L, M Node Q Nodes N, R, T
        1.08x 1.13x 1.14x -
       
       
       
       
       
       
    1.1448x1.08 * 1.06 1.13x 1.14x 1.15x
        1.06x - - 1.15x
       
       
       
       

Tips

Be advised: The Developers have mentioned that the enemy compositions and map may change over time [3], this could include the resource node possibly. So take advantage of the map while it is possible.

7-5 is a multiphase map with the following HP gauges:

  • The 1st boss requires 2 kills to clear
  • The 2nd boss requires 3 kills to clear
  • The 3rd boss requires 3 kills to clear
  • Clearing this map rewards 170 Ranking points and a Medal.

Recommended Fleets

In every phase:

  • Bringing AACI is recommended.
  • Bringing OASW is advised if not too detrimental to surface combat effectiveness.
  • Bringing historical ships is recommended.

Phase 1

  • 3-4CL(T) 2-3DD
  • 1(F)BB(V) 0-1CA(V) 1-2CL(T) 3-4DD
  • Route = A B D F G H K
    • Shortest route to the boss

Gimmick Phase

In addition to clearing Phase 2, Node M must be S ranked to unlock Phase 3. This step can be done at any point, right after clearing Phase 1. As it can use the same fleet as Phase 1, it is more convenient to do it after clearing Phase 1.

Phase 2

  • 1BBV 1CAV 1CL 3DD
  • Route = A B D F J O Q
    • Shortest route to the boss,
    • The boss is an "Installation" and requires appropriate gears to be defeated,
    • The boss fleet includes one or two PT Imp Packs, requiring appropriate gears to be defeated (these can be ignored if an S-rank is unnecessary):
Anti-PT boat
Unlike most standard Abyssals, "PT boats" (PT Imp Pack  & Schnellboot Imp Pack ) are "very small and fast".
  • All ship types suffer a severe   accuracy and   firepower penalty against PT boats.
  • Attacking them with larger guns is not very effective, smaller guns being recommended instead.
  • Support Expeditions are not affect by any of the following[1].
Attack formula against PT boats
The Attack formula against PT boats:[2][3]
Jet Assault & Airstrike
  • [math]\displaystyle{ \text{Damage}_\text{PT}= \text{Atk}_\text{post-cap} \times \text{Rand} [0.5 ; 0.8] }[/math]


LBAS[4]
  • [math]\displaystyle{ \text{Damage}_\text{PT}= \text{Atk}_\text{post-cap} \times \text{Rand} [0.4 ; 0.7] }[/math]


Shelling
  • [math]\displaystyle{ \text{Damage}_\text{PT}= ( 0.3 \times \text{Atk}_\text{post-cap} + \sqrt{\text{Atk}_\text{post-cap}} + 10 ) \times \prod^{All Equipment}{\text{Mod}_\text{EquipmentAtk}} }[/math]


Opening & Closing Torpedo Salvos
  • [math]\displaystyle{ \text{Damage}_\text{PT}= 0.3 \times \text{Atk}_\text{post-cap} + \sqrt{\text{Atk}_\text{post-cap}} + 10 }[/math]


Night Battle
  • Night Battle data are unclear yet.


With
  • [math]\displaystyle{ \text{Atk}_\text{post-cap} }[/math] the post cap attack power defined here,
  • [math]\displaystyle{ \text{Mod}_\text{EquipmentAtk} }[/math] the bonuses given by equipment, described below.
Accuracy formula against PT boats
The Accuracy formula against PT boats:[5][6][7][8]
[math]\displaystyle{ \text{Hit Rate}_\text{vs.PT} \text{%} = \Big\lfloor ( 0.3 \times \text{Accuracy}_\text{Atk} + \sqrt{\text{Accuracy}_\text{Atk}} + 15 ) \times 1.2 \times \text{Mod}_\text{Ship} \times \Big( \prod^{All Equipment}{\text{Mod}_\text{EquipmentAcc}} \Big) \times \text{Mod}_\text{Night} \Big\rfloor - \text{EVA}_\text{PT} + 1 }[/math]
With
  • [math]\displaystyle{ \text{Acc}_\text{Atk} }[/math] the standard accuracy described here
    • PT boats are "DDs" in the game, so the [math]\displaystyle{ \text{Mod}_\text{formation} }[/math] for vanguard is 1.1 during shelling, and 1.2 during the torpedo phase.
    • Historical accuracy bonuses during Events are included in the Standard Accuracy Term, i.e. it is affected by the [math]\displaystyle{ \text{Mod}_\text{PT} }[/math] modifier.
  • [math]\displaystyle{ \text{EVA}_\text{PT} }[/math] the PT estimated evasion   described bellow,
PT boats stats
Type Luck   Eva   [math]\displaystyle{ \text{EVA}_\text{PT} }[/math]
Line Ahead  Echelon  Line Abreast 
PT Imp Pack  ? ? 81? 87? ?
PT Imp Pack II  60 220 80 87 85
PT Imp Pack III  60 250 82 89 88
PT Imp Pack IV  ? ? ? 84? ?
Schnellboot Imp Pack  ? ? ? ? ?
Schnellboot Imp Pack II  ? ? ? ? ?
Schnellboot Imp Pack Elite  ? ? ? ? ?


The main Accuracy modifiers are
  • [math]\displaystyle{ \text{Mod}_\text{Amagiri} }[/math] being include in [math]\displaystyle{ \text{Acc}_\text{Atk} }[/math]:
  • [math]\displaystyle{ \text{Mod}_\text{Ship} }[/math] the bonus given by ship types, described below,
  • [math]\displaystyle{ \text{Mod}_\text{EquipmentAcc} }[/math] the bonuses given by equipment, described below,
  • [math]\displaystyle{ \text{Mod}_\text{Night} }[/math] being 0.7 during night battle, 1 during day battle.


Amagiri Kai Ni/D 
  has the ability to prioritize focusing on attacking PT imps with significantly increased accuracy if any are present.

  • DD placed in the composition slots above and below her will gain a noticeable accuracy boost and will prioritize attacking PT boats if any are present.
  • The PT boat targeting rate is 100% for all affected ships [9].

During Events, some special bonuses may be added, with "historical" ships and equipment gaining some accuracy bonuses[10].

Ship Type [math]\displaystyle{ \text{Mod}_\text{Ship} }[/math]
DD & DE 1.0
CL, CLT, & CT 0.82
All other types 0.7
Equipment [math]\displaystyle{ \text{Mod}_\text{EquipmentAcc} }[/math] [math]\displaystyle{ \text{Mod}_\text{EquipmentAtk} }[/math]
1st equipped 2nd equipped 1st equipped 2nd equipped
  Small Small Caliber Main Guns[11] 1.3 1.15 1.5 2.11.5×1.4
  Sec Secondary Guns[12] 1.55 1 1.3
  Anti-Aircraft Guns 1.45 1.35 1.2 1.441.2×1.2
  Skilled Lookouts 
  		1.75 1 1.1
 Armed Soukoutei (Armored Boat Class)  1.45 1.3 1.2 1.1
Armed Daihatsu  1.45 1.3 1.2 1.1
  Ka-Tsu Tanks 
 [13][14] 		1 1.3 1 1.1
 Bomber  Seaplane Bombers & Seaplane Fighters 1.5 1 1.2
    Dive Bombers & Jets 
  		1.375 1.2 1.4 1.821.4×1.3
All other equipment 1 1
Notes
  • It is recommended to use anti-PT setups on DDs only, such setups compromising overall combat effectiveness.
  • Having a Reinforcement Expansion is important because it can save a ship slot by containing a machine gun or skilled lookouts.
  • Combining equipment is recommended to see significant boosts to accuracy.
  • The   Ka-Tsu Tanks 
          bonus does not stack with the   Armed Boats 
          ones.
  • Using other setups improving accuracy is also advisable:
References:
  1. ↑ https://twitter.com/yukicacoon/status/1701605514671751674
  2. ↑ https://twitter.com/yukicacoon/status/1621162082245967876
  3. ↑ https://wikiwiki.jp/kancolle/PT%E5%B0%8F%E9%AC%BC%E7%BE%A4
  4. ↑ https://twitter.com/Divinity_123/status/1659942254671216642
  5. ↑ https://twitter.com/Xe_UCH/status/1554299068486397953?s=20&t=OHU47ATyROzVxkmLVVTL-w
  6. ↑ https://docs.google.com/spreadsheets/d/1-T9OfSDOoLKQXtBDeP80izgWl3f5G_eqMQYLW-WbSnw/edit#gid=680928319
  7. ↑ https://twitter.com/Divinity_123/status/1492264067809038343
  8. ↑ https://docs.google.com/spreadsheets/d/1BpctZEkEF94iOR1I704d3Rn9kKg1gAj9tK4cXdq1CNs/edit#gid=0
  9. ↑ https://twitter.com/twillwave1024/status/1705662216979324937
  10. ↑ https://twitter.com/Divinity_123/status/1492264067809038343?s=20&t=wbO5mDqGOL3gRBY9jG3c5w
  11. ↑  Medium Medium Main High-Angle Guns 
          do not to work here.
  12. ↑  Sp_Sec Large Secondary (High-Angle) Guns  may work here too, to be determined.
  13. ↑ https://twitter.com/yukicacoon/status/1770007636160946603
  14. ↑ https://twitter.com/yukicacoon/status/1781690482130911711
[edit]

Phase 3

  • 0-1(F)BB(V), 1-2CA(V), 1CL, 3DD
  • 1(F)BB(V), 1CA(V), 1CLT, 1CL, 2DD (FAST)
  • 1CVL, 1-2CA(V), 1-2CL, 2-3DD
    • 2CL in a slow fleet requires 3DD to route J -> O
  • Route = A B D F J O P T
    • Shortest route to the boss

  • 1-2(F)BB(V), 0-1CVL, 1CL, 3DD
  • Route = A B D F J O P R T
    • Allows an extra battleship or light carrier in exchange for an extra surface combat at node R.

  • There is a LoS check at P (Cn4 = 58?)
  • Using historical ships and/or high-damage night attacks is recommended as Batavia Princess has up to 244 armor in the Last Dance formation of the boss node.

SS and Carrier Exp farming

The 1st enemy node being an Air Node, it's possible to take advantage of how it works to level up any SS(V) as well as "carriers" risk-free.

  • All SS(V) won't take any damage on Node A, so any SS(V) fleet can level up risk-free on this node.
  • If possessing one or more 12cm 30-tube Rocket Launcher Kai Ni , it is possible to take advantage of the AARB mechanic to also level up CV(L), BBV, CAV, and AV.
    • By equipping one RLK2 on carriers, passing a certain AA threshold, said carrier won't take any damage on the Air Node.
    • Having more than 1 RLK2 on the same ship decreases the AA threshold, making it possible to level up weaker carriers.
  • Once Node A cleared , retreat to the base and repeat.

Enemy Compositions

 
7-5 A: 深海基地航空隊　ジャワ展開部隊 (PoiDB)
# Formation Air Defense Node AD/AP
AS/AS+
A Diamond      17/33
72/144
Diamond        57/113
254/507
Diamond         62/123
275/549
Diamond         67/134
300/600
Diamond            112/224
503/1005
# Formation Air Defense Node AD/AP
AS/AS+
7-5 B: マカッサル海峡 深海哨戒群 (PoiDB)
# Formation Normal Battle Node AD/AP
AS/AS+
B Echelon
Line Abreast 		       0/0
0/0
Echelon
Line Abreast 		       0/0
0/0
Echelon
Line Abreast 		       0/0
0/0
Echelon
Line Abreast 		         0/0
0/0
Echelon
Line Abreast 		           0/0
0/0
# Formation Normal Battle Node AD/AP
AS/AS+
7-5 C: 深海連合混成艦隊 駆逐隊 (PoiDB)
# Formation Normal Battle Node AD/AP
AS/AS+
C Line Ahead
Echelon 		            
0/0
0/0
Line Ahead
Echelon 		            
0/0
0/0
Line Ahead             
0/0
0/0
Line Ahead
Echelon 		            
0/0
0/0
Line Ahead
Echelon 		            
0/0
0/0
# Formation Normal Battle Node AD/AP
AS/AS+
7-5 D: 深海連合混成艦隊 前衛戦隊 (PoiDB)
# Formation Normal Battle Node AD/AP
AS/AS+
D Line Ahead
Double Line 		            
0/0
0/0
Line Ahead             
0/0
0/0
Line Ahead
Double Line 		            
0/0
0/0
Line Ahead             
0/0
0/0
# Formation Normal Battle Node AD/AP
AS/AS+
7-5 E: 深海連合混成艦隊 哨戒艇部隊 (PoiDB)
# Formation Normal Battle Node AD/AP
AS/AS+
E Line Ahead
Vanguard 		           0/0
0/0
Line Ahead
Vanguard 		           0/0
0/0
Line Ahead             
0/0
0/0
Line Ahead             
0/0
0/0
# Formation Normal Battle Node AD/AP
AS/AS+
7-5 F
# Selection Node
F 艦隊の針路を選択できます。提督、どちらの針路をとられますか？
You can decide the fleet's course. Admiral, which heading should we take?
# Selection Node
7-5 G: 深海連合混成艦隊 警戒隊 (PoiDB)
# Formation Normal Battle Node AD/AP
AS/AS+
G Line Ahead
Echelon 		           0/0
0/0
Line Ahead            0/0
0/0
Line Ahead
Echelon 		           0/0
0/0
Line Ahead             
0/0
0/0
# Formation Normal Battle Node AD/AP
AS/AS+
7-5 H
# Selection Node
H 艦隊の針路を選択できます。提督、どちらの針路をとられますか？
You can decide the fleet's course. Admiral, which heading should we take?
# Selection Node
7-5 I
# Empty Node
I 気のせいだった。
Must be my imagination.
# Empty Node
7-5 J: 深海連合混成艦隊 ジャワ防衛線 (PoiDB)
# Formation Normal Battle Node AD/AP
AS/AS+
J Line Ahead
Double Line 		            
0/0
0/0
Line Ahead
Double Line 		            
0/0
0/0
Line Ahead
(Final)
             
9/17
36/72
Line Ahead
(Final)
              
24/47
104/207
# Formation Normal Battle Node AD/AP
AS/AS+
7-5 K: 深海連合混成艦隊 主力艦隊 (PoiDB)
# Formation Boss Battle Node AD/AP
AS/AS+
K Line Ahead
Double Line 		            
0/0
0/0
Line Ahead
Double Line 		            
0/0
0/0
Line Ahead
(Final)
             
0/0
0/0
Line Ahead
(Final)
             
0/0
0/0
# Formation Boss Battle Node AD/AP
AS/AS+
7-5 L: 深海連合混成艦隊 遊撃戦力 (PoiDB)
# Formation Normal Battle Node AD/AP
AS/AS+
L Line Ahead
Double Line
Echelon 		       0/0
0/0
Line Ahead
Double Line
Echelon 		       0/0
0/0
# Formation Normal Battle Node AD/AP
AS/AS+
7-5 M: 深海連合混成艦隊 脱出残存部隊 (PoiDB)
# Formation Normal Battle Node AD/AP
AS/AS+
M Line Ahead
Double Line
Echelon 		       0/0
0/0
Line Ahead
Double Line
Echelon 		       0/0
0/0
# Formation Normal Battle Node AD/AP
AS/AS+
7-5 N: 深海潜水艦隊 ジャワ海哨戒群 (PoiDB)
# Formation Normal Battle Node AD/AP
AS/AS+
N Echelon
Line Abreast 		       0/0
0/0
Echelon
Line Abreast 		       0/0
0/0
Echelon
Line Abreast 		       0/0
0/0
Echelon          0/0
0/0
Echelon            0/0
0/0
Echelon            0/0
0/0
Echelon            0/0
0/0
# Formation Normal Battle Node AD/AP
AS/AS+
7-5 O
# Selection Node
O 艦隊の針路を選択できます。提督、どちらの針路をとられますか？
You can decide the fleet's course. Admiral, which heading should we take?
# Selection Node
7-5 P
# Empty Node
P 気のせいだった。
Must be my imagination.
# Empty Node
7-5 Q: 深海連合混成艦隊 クラガン陣地 (PoiDB)
# Formation Boss Battle Node AD/AP
AS/AS+
Q Diamond               
32/64
143/285
Diamond               
39/77
171/342
Diamond               
32/64
143/285
Diamond               
39/77
171/342
Diamond
(Final)
               
39/77
171/342
Diamond
(Final)
               
39/77
171/342
# Formation Boss Battle Node AD/AP
AS/AS+
7-5 R: 深海連合混成艦隊 増援機動部隊 (PoiDB)
# Formation Normal Battle Node AD/AP
AS/AS+
R Diamond              
36/72
161/321
Diamond               
72/143
321/642
Diamond              
36/72
161/321
Diamond                
80/160
359/717
Diamond                
80/160
359/717
Diamond                 
89/177
396/792
# Formation Normal Battle Node AD/AP
AS/AS+
7-5 S
# Empty Node
S 敵影を見ず。
No enemy spotted.
# Empty Node
7-5 T: 深海連合混成艦隊 残存部隊旗艦 (PoiDB)
# Formation Boss Battle Node AD/AP
AS/AS+
T Line Ahead          0/0
0/0
Line Ahead            0/0
0/0
Line Ahead
(Final)
            0/0
0/0
Line Ahead
(Final)
            0/0
0/0
Line Ahead
(Clear)
          0/0
0/0
Line Ahead
(Clear)
          0/0
0/0
# Formation Boss Battle Node AD/AP
AS/AS+

Ship Drops

World 7/7-5/Ship drops

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