Buy Euro & pacific games. download the Alpha+2 rules and objectives and set ups, play both OOB and the Alpha+2 using the global rules for the OOB and the Alpha+2 rules for the other set up. I think you’ll see the diff.
I think the Alpha+2 is a better game and I like it the way it is
US Atlantic to Pacific Convoy - Alpha +.2
Rule: The United States Navy, while being neutral, has the following movement restrictions. It can only move to sea zones that are adjacent to US territories in the Atlantic (more specifically Sea zones 121, 101, 89 and 64). US warships (not transports) may also conduct long range patrols into sea zone 102. In the Pacific it can only end naval movements in sea zones that are not adjacent to Japanese-controlled territories and islands.
Question: Can the US send Atlantic warships and transports to the Pacific while being neutral? In other words, can a ship go from sea zone 101 through the Panama Canal and end up in sea zone 11 while not at war with the Axis powers?