I think the developers could make 4 theaters of wars and place the campaigns according to the location of the theaters of wars.
The theaters of war and campaigns would be:
Eastern Front: Moscow, Stalingrad, Berlin
Western Front: Normandy
North Africa and Mediterranean front: Tunisia
Pacific front: Guadalcanal
The menu would look like this: When starting the game, it appears for the player to choose a theater of war (with map images of each front, such as the Eastern, Western, Pacific, Mediterranean and North African Fronts), and then the campaigns for the player choose (where it shows the region of the campaign, I will send below an image suggestion of how the design of the campaigns and theaters of war could be), after choosing the campaign, the player customizes his equipment and soldiers of his Squads according to the levels of the chosen campaign.
Example: When the screen to start appears, the player clicks on start, then it appears for the player to choose some of the theaters of wars, and he chooses the theater of the eastern front, then it appears for him to choose the following campaigns Moscow, Berlin and Stalingrad, the player chose the Berlin campaign and after he customized his squad and his soldiers’ equipment, he clicked Start. BUT it lands on some map of Moscow, instead of being Berlin, your squadron and your soldiers would be according to the shape you customized in the Moscow campaign before customizing in the Stalingrad campaign.
So, in matches, you would play according to the theater of war you chose and not the campaigns (as it currently is), and the player would fall into maps of the campaigns randomly, within your chosen theater of war.
Developers could add 1 option for the player to choose his favorite campaign and another option for the player to choose a campaign he doesn’t like in each theater of war.
Images below of what the war and campaign theater designer could look like.
Theater of War:
North Africa region and the Mediterranean
Campaigns:
I think it would be interesting to leave a story of the battle for each campaign like on the right side of the image, leave the texture of the map design with the clouds too, and instead of placing the soldiers on top of the text of the battle story, put the flags of the countries that will face each other. And also put some dots (like in the BF image, but it can be with another format and color, where you can suggest) with names and images of each campaign map, and these country flags on the side of the map and below in the image above does not need to be placed.
What did you think?