Battle of the Coral Sea normal guide, pacific axis 4
Use land units to take Port Moresby and the Australian city east of it. Have cruiser support the land units by destroying fortifications and lowering the city HP. Destroyers and submarines fight enemy navy units.
After you have built a lot of subs split naval units into two groups, 1st group consisting mostly of subs go east to take the 2 objective ports while the 2nd group clear the area below Port Moresby of naval units. Once the area below Port Moresby is clear, move land units to capture the city Blamely is in. Have the 2nd group of naval units support them by destroying costal artillery and using cruiser to damage the city Blamely is in.
Notes-
-Don't deploy tank general right away. You want to capture Port Moresby and use the lvl 3 factory there to build a heavy tank for your tank general to deploy on
-The USA will paratroop infantry near the city east of Port Moresby. Once you capture the city build a light inf so they won't use paratrooper to capture the city. I left the medium tank to deal with the infantry they paratroop.
-Build lots of subs, when you have a lot than build cruisers.
-Capturing Port Moresby and the city east of it will give $500 each.
Completing this scenario will give you this nice technology wonder.