Nice list from:
https://www.wargamer.fr/strategic-comma ... l-runacre/
“Lynx: The naval dimension is particularly important in this theatre of operations. Can you tell us about it?
The naval dimension is crucial, even for the war in China, because without control of the seas, it will be very difficult, if not impossible, for Japan to win.
Some improvements have been made to naval combat in this version, and the first of them was to make naval supplies more realistic.
This change means that ports that are not connected to the capital, industrial center or a Major's main supply center, i.e. ports on small islands, now provide less supply to naval units than before.
This modification has a double impact on the game. First of all, by increasing the importance of returning to the home ports in order to obtain maximum refuelling.
Secondly, by reinforcing the importance of another new feature introduced with this version: shipbuilding, aka Seabees, because this category of research offers players the opportunity to improve the supply value of these small island ports.
Shipbuilding can be extremely important to win naval battles far from your home ports, because it means that you can - and must - improve places like the Ulithi Atoll to make them valuable naval bases.
When Japan and the United States fight for the Solomons or the Allies approach Japan, improving ports to increase their supply potential to a maximum of 12 can really make all the difference in the naval battles that follow!
A second new category of research has been introduced: underwater warfare. We were aware that neither American submarine fleets nor Japanese submarine fleets had engaged in many attacks on merchant ships at the beginning of the war, and that only the United States had begun to do so as the war progressed.
As a result, both sides can now modify the doctrines of their underwater units as the war progresses, by increasing their raid capabilities to better target the routes of enemy convoys.
Another modification of the engine introduced for the Pacific game was to change the control area parameters of naval units so that their control area effects are customizable independently of land units.
Inspired by Hairog's WW2 Naval War mod, this change allowed us to significantly increase the area of control exercised by ships, and coupled with the increase in the chances and retirement distance of most naval units when they are beaten, the combined effects of these changes have radically changed naval battles.
These changes were very well received by the beta team, and we look forward to everyone being able to test them on July 18!”