Transport Operation
Transport Operations are an event mechanic that was introduced during the Fall 2015 Event. Unlike the usual map-clearing mechanic, completing a Transport Operation does not require to kill the boss.
Overview
The objective of the Transport Operation is to deplete a Transport (TP) gauge/bar.
- The amount of TP that needs to be depleted varies by difficulty and map.
The TP Gauge is depleted each time the fleet reaches a "Transport Loadout Node" (a node marked with a green flag) and then scores an A+ rank at the boss, with S ranks depleting more points than A ranks.
- Ships that are heavily damaged (大破), evacuated, or sunk, are not counted towards gauge depletion.
The boss does not need to be sunk at any point.
- Sinking it may be advisable to get S ranks and so deplete the gauge faster.
- In the eventuality there is no boss node after the TP node, then just reaching the node is enough, counting as an S rank all the time.
Those phases are usually completed by a single fleet or a "Transport Escort Force" (TCF).
1-6 behaves similarly to Transport Operations, but is not one, being much simpler.
TP Gauge Depletion
TP gauge reduction is calculated using the following formula: [math]\displaystyle{ \text{TP Drain} = \biggl\lfloor \text{Mod}_\text{rank} \times \biggl\lfloor \sum^{\text{All equipment slots}} \text{TP}_\text{equip} + \sum^{\text{All ships in fleet}} \text{TP}_\text{ship} \biggr\rfloor \biggr\rfloor }[/math]
- [math]\displaystyle{ \text{Mod}_\text{rank} }[/math] is the rank modifier. It is 1.0 for S ranks, 0.7 for A ranks, and 0 otherwise.
- [math]\displaystyle{ \text{TP}_\text{equip} }[/math] is the Equipment TP value. See below for details.
- [math]\displaystyle{ \text{TP}_\text{ship} }[/math] is the Ship TP value. See below for details.
Equipment TP
Some equipment provides TP values when used in Transport Operations. Each instance of the equipment shown in the table below contributes towards the TP drain.
Values listed below are the baseline TP reduction values. They may vary from event to event. Please refer to the current event page for notes of any changes.
| Equipment | S-Rank | A-Rank |
|---|---|---|
 Landing Craft |
8.0 | 5.6 |
 Drum Canisters |
5.0 | 3.5 |
 Amphibious Tanks |
2.0 | 1.4 |
 Rations   |
1.0 | 0.7 |
- Notes
- Even so the
Underway Replenishment
icon is displayed on TP nodes, they do not contribute to TP gauge depletion.
Ship TP
| Ship Type | S-Rank | A-Rank | |
|---|---|---|---|
| AO | Fleet Oiler | 15.0 | 10.5 |
| LHA | Amphibious Assault Ship | 12.0 | 8.4 |
Kinu Kai Ni
|
10.0 | 6.8 | |
| AV | Seaplane Tender | 9.0 | 6.3 |
| BBV | Aviation Battleship | 7.0 | 4.9 |
| AS | Submarine Tender | ||
| CT | Training Cruiser | 6.0 | 4.2 |
| DD | Destroyer | 5.0 | 3.5 |
| CAV | Aviation Cruiser | 4.0 | 2.8 |
| CL | Light Cruiser | 2.0 | 1.2 |
| SSV | Aircraft Carrying Submarine | 1.0 | 0.7 |
| BB | Battleship | 0.0 | 0.0 |
| FBB | Fast Battleship | ||
| CV | Standard Carrier | ||
| CVB | Armored Carrier | ||
| CVL | Light Carrier | ||
| CA | Heavy Cruiser | ||
| CLT | Torpedo Cruiser | ||
| DE | Coastal Defense Ships | ||
| SS | Submarine | ||
Tips
- Stacking only TP equipment can compromise the ability to score an A+ rank and result in no depletion at all. On the other hand, focusing too much on offensive capability may result in minimal gauge depletion even on an S rank.
- It is ideal to find a balance ranking A+ rank the boss while taking as much TP equipment as possible.
- When using a Transport Escort Fleet, the escort fleet should be where the combat-focused ship girls are assigned, since the escort may also attack at night.
- Although Landing Craft deplete the most TP, careful consideration should go into whether using Landing Craft-capable ships is appropriate. Locking key ship when Anti-Installation is required in subsequent maps can result in disaster.