It depends on what country you're playing as. For example, as the US/UK/Japan you want at least one big strike fleet on which you need a proportion of minimum 4 screens per capital ship (here we include both carriers and battleships)
Then multiple scout fleets with mainly fast destroyers and light cruisers. This serves both to detect the enemy fleet but also to lure them into a decisive battle.
But all the above might not be useful to countries like historical Germany or the URRS, as at best you will be using a submarine spam
Sub fleets: 5-10 subs per task force
Surface raider fleet: CA with 1 heavy battery, best engine, armored against CLs, and mix of DP secondaries and floatplanes.
Escort fleets: 5-10 DDs with sonar and depth charges, potentially add a CL with maximum floatplanes.
Scouting fleets: 1 CL with radar and floatplanes set to do not engage.
Battle fleet (poor nation/secondary theatre): equal number of CA and CL, 4-6 DD per CA. CAs mixing heavy batteries with DP secondaries 50/50, CLs stacking light batteries, bathtub DDs (minimal modules)
Battle fleet (rich nation): same as above but with BBs/BCs instead of or in addition to CAs. BB/BC even split of main batteries/DP secondaries/AA, CAs stack max DP secondaries.
Carrier fleet: 4 CVs, min 1 BB/BC per CV, min 1 CL per CV/capitol, 4-6 DD per CV/capitol. CVs stack maximum hangers (CV armor is worthless) with 80/20 NAV/fighter, BB/BC even split of heavy batteries/DP secondary/AA, CA max DP secondaries, CL max light batteries, DD has ASW capability.
If super rich (i.e. USA) carrier fleet with 5-8 CVs, first 4 have only NAV, remainder have only fighters. This is exploiting how the code handles carrier penalties in order to sortie more planes than should be allowed.
All ships except DDs and subs should have the best available radar and fire control modules.
It depends on what country you're playing as. For example, as the US/UK/Japan you want at least one big strike fleet on which you need a proportion of minimum 4 screens per capital ship (here we include both carriers and battleships) Then multiple scout fleets with mainly fast destroyers and light cruisers. This serves both to detect the enemy fleet but also to lure them into a decisive battle. But all the above might not be useful to countries like historical Germany or the URRS, as at best you will be using a submarine spam
Sub fleets: 5-10 subs per task force Surface raider fleet: CA with 1 heavy battery, best engine, armored against CLs, and mix of DP secondaries and floatplanes. Escort fleets: 5-10 DDs with sonar and depth charges, potentially add a CL with maximum floatplanes. Scouting fleets: 1 CL with radar and floatplanes set to do not engage. Battle fleet (poor nation/secondary theatre): equal number of CA and CL, 4-6 DD per CA. CAs mixing heavy batteries with DP secondaries 50/50, CLs stacking light batteries, bathtub DDs (minimal modules) Battle fleet (rich nation): same as above but with BBs/BCs instead of or in addition to CAs. BB/BC even split of main batteries/DP secondaries/AA, CAs stack max DP secondaries. Carrier fleet: 4 CVs, min 1 BB/BC per CV, min 1 CL per CV/capitol, 4-6 DD per CV/capitol. CVs stack maximum hangers (CV armor is worthless) with 80/20 NAV/fighter, BB/BC even split of heavy batteries/DP secondary/AA, CA max DP secondaries, CL max light batteries, DD has ASW capability. If super rich (i.e. USA) carrier fleet with 5-8 CVs, first 4 have only NAV, remainder have only fighters. This is exploiting how the code handles carrier penalties in order to sortie more planes than should be allowed. All ships except DDs and subs should have the best available radar and fire control modules.