Hi Swartz55
I play both of the PC games you mentioned so I have a fairly good idea of what you are aiming for.
I dont know of any set of wargames rules that will give you air, land and sea battles in the same set. If there were I would also be interested in giving them a look over.
Theres a set of rules called Blitzkrieg Commander II that makes provision for naval gunfire and rocket support. So if you use this set of rules your warships can support your troops on the ground. I think the Spearhead rule set also makes provision for this.
What you would then need to do is find another set of rules to deal with naval and air battles. Unfortunately I dont game naval or air (yet) so cant give you suggestions for rule sets there.
Another thing you need to consider is scale – if you game in 1/285 an aircraft carrier or battleship is going to be huge and will take up a big chunk of space.
What you could do is game each part of a major battle separately using different rules and scales e.g land battles in 6mm (1/285 or 1/300), naval vs naval in 1/2400 (including naval vs air) and air battles in 1/300 or 1/600.
That's doable and because its YOUR game and your minis you can pretty much do as you like.
I am using a similar approach, with my 1/300 aircraft that support my 1/300 WW1 armies also being able to attack the monitors and riverine craft. I made up rules for these air attacks, pretty basic stuff to be honest. If theres an air attack on ground or naval units I just roll a dice to see if the attackers get intercepted, and then if there is interception I just roll a dice and the highest dice shoots down the lower. As I said, pretty basic, and it gives some nice flavor to my games. And my opponent cant complain because I game solo.