The Phantom of the Okhotsk

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Author: Felix

Last revision: 21 Sep, 2025 at 05:43 UTC

File size: 10.26 MB

On Steam Workshop

Description:
The Phantom of the Okhotsk

"The Phantom of the Okhotsk” is the Soviet scenario part of the "Battle Over Hokkaido" scenario.
The game consists of seven missions in which players take command of the Soviet Navy’s Pacific Fleet and are tasked with defending the Sea of Okhotsk against enemy threats.

https://steamcommunity.com/sharedfiles/filedetails/?id=3439988413

OPERATION

The player assumes the role of the captain of “K-64”, a state-of-the-art submarine of the 25th Submarine Division, Soviet Navy Pacific Fleet. Your mission: to defend the Sea of Okhotsk against enemy incursion.

NOTICE

This scenario requires “Anchor Chain” and “SeaLifter”.
Please refer to the relevant page for details.
https://seapower-modders.github.io/AnchorChain/install-anchor-chain.html#installing-the-anchor-chain-preloader

PROLOGUE

This scenario was created as a companion piece to my previous work, Battle Over Hokkaido.
The broader historical context is inspired by World War III (1998), a German TV production by ZDF.
To fully appreciate the narrative and strategic context, it is highly recommended that you play Battle Over Hokkaido first.

As with the previous scenario, certain unit deployments are randomized, meaning mission difficulty may vary significantly depending on how events unfold. In fact, this scenario may be just as, or even more, challenging than its predecessor.

You’ll need to make the most of your limited resources, plan carefully, and execute each operation with precision to succeed while minimizing losses.
Some missions may be difficult to complete on the first or even second try—please don’t be discouraged.
Adapt your strategy, and persist to the very end.

1. FRIGID FRONTIER – 極圏

Conduct anti-surface and anti-submarine warfare training exercises with friendly forces using newly commissioned submarines, including the state-of-the-art K-64.

2. FROZEN EDGE – 氷刃

The Krill Inter-Island Acoustic Surveillance System detects signs of an enemy submarine infiltrating the fortress area.
Night training is abruptly canceled, and you are dispatched to the area to respond to the threat.

3. LOST COURSE – 迷航

An initial invasion operation ends in failure after underestimating the capabilities of Japanese and American forces, leading to severe losses across the fleet.
Despite the damage, K-64 plays a key role in stabilizing the situation.

4. ABYSSAL SHADE – 深影

Following the failed operation, contingency plans are put into motion as a form of strategic insurance.
K-64 is assigned to escort a cargo of critical military importance.

5. SHADOWED DEPTHS – 暗影

In the wake of a catastrophic failure during the second phase of the invasion, Soviet forces—including K-64—demonstrate the concept of a mobile fortress in the Sea of Okhotsk to protect the remaining fleet.

6. FALSE TRAIL – 欺瞞

Nearly two hours have passed without the expected operational orders arriving.
In the silence, K-64 detects a strange signal and moves to investigate an unfolding mystery.

7. PHANTOM STRATEGY – 幻策

Just as stability appears within reach, chaos erupts once more in the Sea of Okhotsk.
A bold and final decision is required to safeguard the fortress’s future.

EX: CLIMB MT. NARODNAYA

As a bonus mission, you’ll take on the Soviet perspective of “Piano Sonata No. 14,” the final operation featured in Battle Over Hokkaido.

Assume the role of the commander of the 3rd Missile Ship Division, Soviet Pacific Fleet, and lead a surface fleet in a renewed push—the third landing operation on Hokkaido.
Failure is not an option.

CAUTION

Seapower appears to load all objects at once, which can lead to significant coordinate shifts if too many are present.
To mitigate this, some objects have been reduced or omitted in this scenario.

If the mission begins with noticeably distorted coordinates, restarting Seapower may resolve the issue—though it may take several attempts.

EPILOGUE

The Sea of Okhotsk, as depicted in this scenario, is one of the world’s most strategically vital submarine theaters.

During the winter months from December to February, much of the Sea of Okhotsk—especially along the eastern coast of Sakhalin and the shores of Hokkaido from Wakkanai to Kushiro—is covered in drift ice.

While most of the Pacific Fleet’s surface vessels are based on the Sea of Japan side—in ports like Sovietskaya Gavan and Vladivostok (both frequently referenced in this scenario)—they are limited in their reach when it comes to remote areas such as the Kamchatka Peninsula, the Kuril Islands, and the Sea of Okhotsk itself.
In contrast, nuclear-powered submarines, with their long endurance and stealth capabilities, are perfectly suited to such environments.

The immense logistical and operational effort required to maintain submarine presence in this region underscores its strategic significance.
Terms like “fortress” or “sanctuary” may not fully capture the weight of its importance.

In Battle Over Hokkaido, the large scale of the conflict made it difficult to focus on submarine operations.
With this scenario, I hope to offer a meaningful companion piece that highlights these often-unseen elements of warfare.

In addition, this scenario imposes unique punishments that are peculiar to the Soviet Union in the event of operational failure.
If you have time, it would be fun to try to make the operation fail intentionally.

If you enjoyed this scenario, please let me know in the comments. If it’s not too much trouble, I’d also be very happy to receive a high rating.

SPECIAL THANKS

This scenario is a personal project that makes extensive use of mods to recreate the unique and intense atmosphere of the early 1990s.
In particular, the Anchor Chain and SeaLifter plug-ins have elevated Seapower to an entirely new level.
Their contribution can be summed up in one word: exceptional.

This project would not have been possible without the efforts of many mod developers, whose creations—both large and small—have helped bring this scenario to life.
To all those developers: thank you for your hard work and dedication.

This work is a work of fiction and is not related to any real persons, places, or organizations.
この作品はフィクションであり、実在の人物、場所、組織とは一切関係ありません。

This work does not permit redistribution and repackage in any form.
本作品は、いかなる形態であっても再配布および再パッケージ化を許可しません。

Despite extensive testing, there may still be unforeseen bugs or issues. If you notice anything that hasn’t been addressed, I would greatly appreciate your feedback.

New Scenario !
https://steamcommunity.com/sharedfiles/filedetails/?id=3478011289