Remodel Blueprint

Blueprints are items used for remodeling certain ships, usually under the rationale of these ships' unique circumstances in history.

In addition to the difficulty of obtaining blueprints, ships that are upgraded in this manner tend to carry very rare and powerful stock equipment, making prioritizing certain remodels important.

How to Obtain

The only way to obtain a blueprint is by exchanging four medals, found in your inventory (the fourth panel from the left in the overhead menu). The following are ways to obtain medals:

Extra Operations

There are currently four extra operations in the game, accessible in World 1, World 2, World 3, and World 5. Clearing an extra operation yields one medal in addition to bountiful HQ experience; take note, however, that clearing 1-6 does not yield a medal, and instead rewards a present box.

• These can each be cleared once a month, resulting in a maximum of four medals. The boss's health gauge will reset on the first of each month; if it has not reset for you at that time, try obtaining a new API link.
• Extra Operations are intended to be significantly more challenging than other sorties in their respective worlds; sortieing to 2-5 immediately after clearing 2-4 is not recommended for this reason. 5-5's outstanding difficulty and potential ship requirements limit most players from clearing it.
• This is the only consistent way to obtain medals.

Events

Medals are often rewarded in event maps, usually in the later stages. This isn't a reliable way to obtain them, but veteran players can acquire an additional blueprint during the event's duration through these medals.

• The 2015 Winter and Spring events each yielded 5 medals for clearing all the maps on Hard; expect future events to follow a similar trend.

Other

The only other way to obtain a medal is through quest B33.

Blueprint Requirements

The following ships require a blueprint for one or more of their remodels:

• Amagi
• Bismarck (Fully remodeling her to Drei requires two blueprints; she is the only ship with such a hefty demand)
• Chikuma
• Choukai
• Fusou
• Italia
• Katsuragi
• Roma
• Ryuuhou
• Tone
• Unryuu
• Yamashiro

The total number of blueprints required for all of these remodels is 13. That amounts to 52 medals!

Many blueprint remodels are considered indispensable in difficult circumstances like events. For this reason, here is a list of the benefits of each remodel, and a general idea of their remodeling priorities:

Tone/Chikuma:

• In terms of stats, these two cruisers are highly favored for their dominant stats when the Myoukou and Takao class Kai Ni; however, their utility truly shines in branching, where they offer an extremely appealing alternative to the Mogami class, which is very fragile. Their artwork is also greatly celebrated by the playerbase for obvious reasons.
• Their stock equipment consists of a 20.3cm(no.3) Twin Gun Mount, Zuiun (634 Air Group), and Type 21 Air RADAR each. While these items are rare, they aren't quite as significant the equipment carried by the Fusou or Unryuu classes. However, each admiral has his/her specific needs, and may require an upgraded Zuiun or cruiser main gun promptly.

Fusou/Yamashiro:

• This remodel rectifies the primary issue that confronts aviation battleships: firepower. With Nagato-tier output, slightly enhanced durability, and an incredible 23 plane slot, these two have very useful remodels.
• While not as often needed as CAV for branching, they are valuable during events for this purpose, and offer slow-battleship alternatives for those without the Nagato and Yamato classes. Both of these battleships can be used together with a CV or 2 CVL inside a Surface Task Force for dominant air-power during events.
• Their stock equipment includes a Prototype 41cm Triple Cannon (Useful on all battleships, though it cannot be improved), Zuiun Model 12 (The highest-air-power seaplane bombers in the game), and 41cm Twin Gun Mount each. Fusou's unique gear is a 12cm 30-tube Rocket Launcher, which is nearly useless, while Yamashiro comes with a Searchlight, which again has little use. Their gear should be more useful than that provided by the Tone class, but the CAVs' stats probably put them ahead slightly. Their priority, then, is about tied.

Choukai:

• Her second remodel seems like a direct challenge to Haguro's long uncontested offensive power; Choukai is only-slightly better than the Kai Ni cruisers in each parameter, but all of these improvements add up, making her arguably the highest performing CA(V) in the game.
• Despite having somewhat better stats, her remodel isn't quite as important as Tone and Chikuma because she can be replaced by a Myoukou-class Kai Ni in any circumstance, though to slightly less effect. On the other hand, the Tone class offers a profound improvement over the Mogami class in situations that explicitly require a CAV for branching or against enemy fleets with no air power.
• Her stock equipment includes a 20.3cm(no.2) Twin Gun Mount (Easily found elsewhere), Skilled Lookouts (The only non-event source of this unique item), [Searchlight]], and Type 22 Surface RADAR Kai 4. The radar is of particular significance.