The Fall 2013 event will start on Nov 1st after the downtime. Please put useful information, such as drops and walkthrough from the official twitter as well as other sources.

Official Twitter

 
Kongou Kai-2 image

Information from the official Twitter so far.

  1. Event Name 【決戦!鉄底海峡を抜けて!】
  2. There will be an event with special maps and shipdaughter rewards for completion.
  3. Five new ships (I-19 SS, I-8 SS, Agano CL, Noshiro CL, and Musashi BB) will be added to the game.
  4. Kongou will receive a high-tier second remodeling at level 75. It buffs her stats a little with a new art. However, it increases her fuel consumption to be just lower than that of Yamato. 
  5. Some event maps will have a day time battle after the night battle or night battle only. So be ware of enemy torpedo ships and plan your fleet accordingly.
  6. Event lasts 20 days from Nov 1st.
  7. Requires at least 75% Sortie Win  Ratio to participate.
  8. At least 5 slots for new girls to join your fleet before sortie.
  9. New Expeditions and Quests.
  10. Possibility to find non-IJN equipments. For this event, you can find non-IJN planes.
  11. Type 3 Sonar and depth charges will be buffed

Map details

E-1 - サーモン諸島海域 (Solomon Islands)

 
E-1
 
E-1 Map
  • Focused on day battle
  • Boss health does not regenerate
  • Friendly for newer admirals
  • Difficulty will be around that of World 2
  • Rewards I-19 upon clearing

E-2 - ルンバ沖海域 (Lunga Point)

 
E-2
 
E-2 Map
  • Focused on night battle (start battle at night)
  • Boss health does not regenerate
  • Friendly for newer admirals
  • Rewards CL Noshiro upon clearing
  • Day battle condition for node J and K (dead end and boss): enemy elite DD survived (TBC)

Branching rules

  • B [math]\displaystyle{ \longrightarrow }[/math] E if you have 3+ BB

E-3 - サンタクロース諸島海域 (Santa Cruz Islands)

 
E-3
 
E-3 Map
  • Focused on day battle
  • Boss health regenerates
  • Boss health will stop regenerating once the bar is fully depleted. It must be killed one more time to win.
  • Only for experienced admirals
  • Rewards equipment package (furniture craft item, emergency repair kit, full repair kit, 53cm oxygen torpedo)

E-4 - アイアンボトムサウンド (Ironbottom Sound)

 
E-4
 
E-4 Map
  • Focused on night battle (start battle at night)
  • Boss health regenerates
  • Like above, the boss health will no longer regenerate once it is super low.
  • Only for experienced admirals
  • Theme: Night battles and airfield bombardment
  • Night battle and the following day battle is considered as ONE battle. So, don't worry if you have heavily damaged ships at night.
  • Arguably the hardest to activate, you either need 1 BB alive or 2-3 floating orbs alive!!!
  • Rewards I-8 upon clearing.

Branching rules

  • C [math]\displaystyle{ \longrightarrow }[/math] F if you have 2 Kongou-class BB

More information

  • Obligatory day battle advance after night battle (counted as one battle). (need more details about mechanism)
  • Support fleet available for day battle
  • Yuugumo-class DD, Maikaze and Hatsukaze are possible to be dropped from boss node of earlier part of event map
  • Suzuya, Kumano, Shoukaku, and Zuikaku are possible to be dropped from boss node of later part of event map
  • Nagato, Zuihou, and Mikuma are possible to be dropped from boss node of event map (very small chance)

See also