- Added the Algérie-class cruiser, Gearing-class destroyer, River-class frigate, and Altmark-class oil tanker.
- Added the Hawker Typhoon fighter, the Junkers Ju 188 bomber, and the Messerschmitt Me 262 jet fighter.
- New campaign objectives now require transported resources instead of manufactured resources.
- New campaigns lock amphibious assaults and building assault fleets until certain objectives are met.
- Updated the objectives panel, with progress indicators and locked objectives shown.
- Improved enemy scouting and convoy-hunting behaviour, and increased German priorities for building u-boats.
- Improved enemy structure building behaviour and research priorities.
- Starting convoys now include troop ships.
- Adjusted the initial structure setup for North America and Axis territories.
- Increased spotting range vs structures on the bridge.
- Removed delay between alert popups.
- Increased research times for historically later technologies.
- Added separate lock toggles on airfields for automatic fighter, bomber, and spotter launches.
- Airborne aircraft flights are rebased (or removed, if no space is available) after demolishing their airfield.
- Added passive sonar to frigates, and they can no longer be ambushed by submersibles.
- Adjusted torpedo launching behaviour for submarine AI.
- Ship squadrons more in faster and looser formations whilst turning.
- The lead ship of a selected squadron is highlighted as such on the minimap.
- Gave the L, O, S, and U-class destroyers functioning AA weapons.
- The Heinkel He 177 Greif model now loads correctly in combat.
- The Cimarron-class oil tanker is available to the Allies in the campaign.
- Docked fleet markers will not double up when a new multi-ship fleet is completed.
- Under-construction fleets can be merged with docked fleets in the shipyard panel.
- Ship and aircraft build counts are reset upon closing the window.
- Ensured initial convoys don't include non-researched ship classes.
- Updated the appearance of the campaign map.
- Various performance optimisations.