NavalArt update V1.42 Operation Mode: Co-op PVE Missions

Foreword

Hello everyone!

After half a week of community testing, we believe the refactored multiplayer PVE framework is now quite stable. Therefore, we have decided to officially release version 1.42 today.

In this update, players can dive into a brand-new multiplayer experience—Operation Mode, which currently features two playable levels. Of course, this mode also fully supports custom player-made levels!

However, since we already rolled out new parts in the Beta version late last month, this official update will not include any additional parts.

Level Additions

New Multiplayer Mode: Operation Mode

The new Operation Mode allows players to experience standalone, mission-driven levels where victory hinges on completing clear objectives. You can choose to follow the level creator's recommendations and use pre-configured ships, or bring your own vessels into the fray. The host has the authority to toggle the option for allowing custom ships.

Currently, this mode can only be accessed in multiplayer rooms set specifically to "Operation Mode".

Level 1: Sea of Dreadnoughts

Hypothetical mission. When WWI drags on into 1921 without a victor, Britain decides to proactively launch a landing operation against Germany, triggering the second decisive naval clash. Playing as the British forces, players will command older warships to challenge the cutting-edge vessels of the German Navy. Suppressing the enemy's older ships early on will provide a crucial advantage for subsequent combat phases.

Level 2: Fall of the Rising Sun

Hypothetical mission. When the Pacific War continues to a point where both sides are deploying new equipment, players will command US forces armed with experimental weapons against a numerically superior IJN fleet. As a joint naval-air operation level, you will not only face advanced battleships but also have to survive massive enemy air raids.

Levels for this mode are generated using the "Standalone Level Editor". Although Steam Workshop support is not enabled at this stage, you can share your custom levels directly within the lobby for other players to experience together.

Much like the Career Editor, this editor is still in its testing phase and requires a specific method to enable.

Please create a "CareerDev.txt" file at C:UsersYourUsernameAppDataLocalLowRZEntertainmentNavalArt, and then access it by selecting [Level Editor] from the small button in the top left corner of the main menu.

Adjustment: Swapped the Alsace and Mogami in "Hunt the Flagship: Alsace" and "Hunt the Flagship: Yamato" to better-optimized versions for improved performance.

Fixes

Fix: Significantly mitigated the long-standing memory leak issue.

Fix: Resolved an issue where level objectives displayed incorrect initial states for client players with slower loading times.

Fix: Addressed historical research and model inaccuracies for the Italian [OTOMAT] Anti-Ship Missile Launcher. The launcher and missile have now been standardized to the Mark 1 variant, utilizing its historical 60km range.

Fix: Fixed a bug where n1332 Italian Armstrong 450mm "100-ton" Gun (Twin Barbette), n1385 British 343mm/30 Mark I Naval Gun (Twin Open Mount), and n1410 Italian 431mm/27 Naval Gun (Twin Barbette) were incorrectly using modern artillery sound effects.

Fix: Corrected the face orientation of n186 Small Crane I.

Fix: Fixed the hitbox dimensions for n62, 63 British 356mm/45 Mark VII Naval Guns.

（Credit: Arztpraxis Dr. Tod Robert）

Visuals

New: Brand-new Ambient Occlusion (AO) effects.

Thanks to these updated lighting and shadow effects, ships now look significantly more realistic, richly detailed, and imposing in scale.

New: Added a semi-transparent effect when the camera clips through the hull.

Adjustment: Reduced the visual intensity of raindrops.

Adjustment: Modified the transparency from the sea surface down to the waterline, reducing overall water transparency.

Adjustment: Removed meaningless fog shading on the sea surface.

Adjustment: Improved sea surface shading and enhanced the horizon line rendering in Fast Mode.

Adjustment: Optimized water surface reflection effects.

Fix: Fixed sea surface specular highlights to resolve visual anomalies at certain camera angles.

Part Stat Adjustments

This update introduces a large-scale accuracy buff for heavy naval guns, alongside several balance adjustments based on historical data.

ID

Name

Adjustments

n23, 646

US 356mm/50 Mark 4/11 Naval Gun

Massive accuracy buff: Horizontal dispersion factor: 4→3.9, Vertical dispersion factor: 5.6→5, Reload time: 34s→39s

n31, 984, 1334

IJN 410mm/45 3rd Year Type Naval Gun (Early)

Minor accuracy buff: Vertical dispersion factor: 5→4.7

n42, 985

IJN 410mm/45 3rd Year Type Naval Gun (Late)

Minor accuracy buff: Vertical dispersion factor: 4.3→4

n59

IJN 460mm/45 Type 94 Triple Turret

Massive accuracy buff: Horizontal dispersion factor: 3.4→3.2, Vertical dispersion factor: 3.9→3.5

n69

US 406mm/50 MK7

Minor accuracy buff: Horizontal dispersion factor: 3→3.2, Vertical dispersion factor: 3.5→3.1, AP shell damage 12330→13750

n147

US 305mm/50 Mark 8 Naval Gun

Moderate accuracy nerf: Horizontal dispersion factor: 2.8→3.3

n148

Soviet 305mm/62 SM-33 Pattern 1948 Naval Gun

Massive accuracy buff: Horizontal dispersion factor: 3.1→3, Vertical dispersion factor: 6→5

n149

IJN 310mm/50 Naval Gun

Massive accuracy buff: Horizontal dispersion factor: 3.9→3.5, Vertical dispersion factor: 5.6→4.6

n150

French 330mm/50 Modèle 1931 Naval Gun

Massive accuracy buff: Horizontal dispersion factor: 5.5→4, Vertical dispersion factor: 4.3→4.5

n151, n645

US 356mm/45 Mark 8 Naval Gun

Massive accuracy buff: Horizontal dispersion factor: 5→4.3, Vertical dispersion factor: 5.8→5.4, Reload time: 34s→39s

n152, 153

IJN 356mm 41st Year Type Twin Turret

Minor accuracy buff: Horizontal dispersion factor: 4.2→4.1, Vertical dispersion factor: 5.3→5.2

n155

Italian 381mm/50 "Ansaldo" M1934 Triple Turret

Minor accuracy buff: Horizontal dispersion factor: 4.5→4.3, Vertical dispersion factor: 5.8→5.6

n156

US 406mm/45 Mk5

Minor accuracy buff: Horizontal dispersion factor: 4→4.3, Vertical dispersion factor: 5.5→4.8, Reload time: 34s→39s

n158

Soviet 406mm/50 B-37 Naval Gun (MK-1 Turret)

Moderate accuracy buff: Horizontal dispersion factor: 3.9→3.35

n159

US 406mm/50 Mark 2 Naval Gun (Tillman Sextuple Turret)

Massive accuracy buff: Horizontal dispersion factor: 5.5→4.5, Vertical dispersion factor: 6.8→5, Reload time: 37s→49s

n401

British 457mm/40 (18") Mark I Turret

Minor accuracy buff: Horizontal dispersion factor: 4→4.7, Vertical dispersion factor: 5→4.4

n409

US 406mm/45 MK6 Triple Turret

Minor accuracy buff: Horizontal dispersion factor: 3.8→3.5, Vertical dispersion factor: 3.5→3.3, AP shell damage 11550→12500

n457

British 406mm/45 Mark I Naval Gun

Moderate accuracy buff: Vertical dispersion factor: 5.5→4.6

n527

US 305mm/45 Mk5/6 Twin Turret

Massive accuracy buff: Horizontal dispersion factor: 6.8→5.2, Vertical dispersion factor: 8.4→5.5, Reload time: 25s→33s

n652

Imperial Russian 305mm/52 Pattern 1907 Naval Gun

Moderate accuracy buff: Vertical dispersion factor: 5.6→5.1

n653

Soviet 305mm/55 B-50 Pattern 1940 Naval Gun

Massive accuracy buff: Horizontal dispersion factor: 3.3→3.5, Vertical dispersion factor: 6.8→5.1

n845, 846

US 406mm/50 Mark 2/Mark 3

Moderate accuracy buff: Horizontal dispersion factor: 4.2→3.8, Vertical dispersion factor: 4.7→4.5

n845, 846

US 406mm/50 Mark 2 Naval Gun

Reload time: 32s→39s

n901

IJN 460mm/50 5th Year Type Naval Gun (Twin Turret)

Moderate accuracy buff: Horizontal dispersion factor: 3.7→3.25, Vertical dispersion factor: 4.2→4.7

n942

IJN 410mm/52.5 3rd Year Type Naval Gun (All-Angle Loading Turret)

Minor accuracy buff: Horizontal dispersion factor: 3.7→3.3, Vertical dispersion factor: 4.5→4.2

n1214

Italian 406mm/50 Ansaldo

Minor accuracy buff: Vertical dispersion factor: 5.6→5.5

n1379

SNCASE SE.582 Fighter

Hangar capacity: 8→9

n1387

Soviet 406mm/50 B-37 Naval Gun (MK-1M Turret)

Moderate accuracy buff: Horizontal dispersion factor: 3.6→3, Vertical dispersion factor: 5→4.5

n1396

French 340mm/45 Modèle 1912 Naval Gun (Twin, Early)

Minor accuracy buff: Horizontal dispersion factor: 5→4.6, Vertical dispersion factor: 5.5→5.3

n1397

French 340mm/45 Modèle 1912 Naval Gun (Twin, Late)

Moderate accuracy buff: Horizontal dispersion factor: 5→4.2, Vertical dispersion factor: 5.5→4.8

n1398

French 340mm/45 Modèle 1912 Naval Gun (Quad, Early)

Minor accuracy buff: Horizontal dispersion factor: 5.1→4.7, Vertical dispersion factor: 5.4→5.3

n1399

French 340mm/45 Modèle 1912 Naval Gun (Quad, Late)

Moderate accuracy buff: Horizontal dispersion factor: 5.1→4.3, Vertical dispersion factor: 5.4→4.8

n1400

US 356mm/50 Mark B Naval Gun

Massive accuracy buff: Horizontal dispersion factor: 4.2→3.9, Vertical dispersion factor: 5.6→4.6

Notes:

1. The vertical dispersion factor is scaled up by roughly 2x in actual gameplay, meaning horizontal dispersion will never exceed vertical dispersion.

2. Historically, the Italian Navy lacked azimuth correction in their fire control, resulting in sub-par horizontal dispersion. Reflecting this characteristic, Italian heavy naval guns will have worse-than-average horizontal dispersion in-game.

3. Due to the notoriously abysmal performance of the "unrivaled" main gun loading mechanisms on historical US Standard-type battleships, the reload time for all Standard-type battleship turrets has been further extended to 39s/salvo. Since conflicting historical data exists regarding the 406mm/50 Mark 2, we are temporarily adopting the more well-supported view that it shared a similar structure to Standard-type battleships, thus increasing its reload to 39s. The highly complex Tillman sextuple turret has been individually adjusted to 49s, but its accuracy has received a massive buff to ensure it doesn't fall too far behind standard artillery. The Career Mode tech tree stats and descriptions have been updated accordingly.

4. Given the overwhelmingly superior armor-piercing capabilities of US 16-inch AP shells (especially post-Mk8 Mod 6), we have significantly buffed the AP damage of US 16-inch naval guns. The Mark 7 naval gun simulates the use of Mark 8 Mod 6 AP shells, while the Mark 6 naval gun simulates the use of Mark 8 Mod 0-5 AP shells.

（Credit: Worldoz）

Ships

New: Added Replica preset ships Enterprise, Cimarron, Pr.24 XIII Variant, Bayern, Sachsen, Moltke, Caio Duilio'42, Zara, Comandante Margottini, Hobart, Orion, Mutsu, Kyushu Maru.

New: Added Advanced preset ships 798 Gōkan, De Grasse'42, Sovetskaya Rossiya.

New: Added country category folders for Replica preset ships: Australia, Russia.

Rework: Reworked the Replica preset ship Sovetsky Soyuz.

Adjustment: Changed the nationality of Advanced preset ship Sevastopol from Soviet to Russia.

Adjustment: Swapped to the correct 127mm secondary guns, added firing arc limits, and optimized physics for Advanced preset ship Wichita.

Adjustment: Replaced the torpedo launchers for Replica preset ship Vdokhnovenny.

Adjustment: Replaced the main turrets for Replica preset ship Scharnhorst.

Adjustment: Swapped to the correct main guns for Replica preset ship Giulio Cesare.

Adjustment: Swapped to the correct secondary guns for Replica preset ship Lexington.

Adjustment: Adjusted the armor structures for Replica preset ships Alsace, Iowa, Missouri, and Wisconsin.

Adjustment: Adjusted the funnel shape, partial armor, and speed for Replica preset ship Mackensen.

Adjustment: Added partial details and changed camo color for preset ship Kaiser.

Adjustment: Changed the save file name for preset ship Caio Duilio (1876).

Fix: Fixed a bug with floating rigging on Replica preset ship Barham.

Fix: Fixed incorrect materials on some deck parts for Replica preset ship Lexington.

Fix: Fixed a camo texture error on Replica preset ship Strasbourg.

Fix: Fixed incorrect coloring on some parts of Advanced preset ship Sverige.

Fix: Fixed a description error for Replica preset ship Béarn.

Preview

In our upcoming version 1.5, we will begin working on the highly anticipated basic Anti-Submarine mechanics, primarily focusing on depth charge racks and projectors.

Of course, Steam Workshop support for community levels will arrive even sooner. It will be implemented via a hotfix prior to the 1.5 update.