I have recently realized that some fairily experienced players may not be aware of the following information and so thought I'd post it here. Quirky stuff but can be useful. This is not covered in the PW Hints document.
3rd and 5th Fleet HQs are subordinate to Cent Pac HQ. After both exist, the following applies.
1) Early in the game, a TF is attached to the HQ of the base where its created.
2) After 3rd Fleet and 5th Fleet HQs exist, a TF created at a Cent Pac, 3rd Fleet, or 5th Fleet base will be attached to 3rd Fleet or 5th Fleet.
3) Which Fleet HQ a TF is attached to depends on the type of TF, not the HQ control of the base where its created.
4) Which HQ an air combat TF is attached to alternates to simulate the historical Spruance/Halsey command changes.
5) Assume its a time period where 5th Fleet controls air combat TFs. It will also control surface combat TFs. Transport TFs created during this time, whether at a Cent Pac, 5th Fleet, or 3rd Fleet base, will be attached to 3rd Fleet.
6) What this means is you can assign good air Admirals as leaders of 5th Fleet, and good land Admirals INCLUDING THE AIR LEADER to 3rd Fleet.
7) Land combat during the landing phase will be controlled by the chain of command TF leader - 3rd Fleet Air Leader - 3rd Fleet HQ Leader - Cent Pac Air Leader - Cent Pac HQ Leader.
8) After landing combat will be controlled by the base commander and whatever HQ the LCUs are assigned to.
9) LCUs should be loaded while assigned to either Cent Pac or 10th Army (if available). That way landing combat is controlled by the TF commander or 3rd Fleet leaders but subsequent combat is controlled by Cent Pac or, preferably, 10th Army.
10) Avoid having LCUs assigned to 5th Fleet in this scenario, which if handled as above, will have leaders with strong air ratings but weak land ratings.
11) The program changes control of the TFs between 5th and 3rd Fleet at various times. When this happens, leaders will need to be changed.