Another problem is distance & simple massive size of the seas. Land based planes rarely attacked CV's because of these two factors; in the MA distance & the sheer scope of how huge an area the seas cover is lessened; so fuel is less of a problem & there are far more planes per square mile looking to find the CV's in far less square miles of sea. When you add in the spies that communicate the exact location of a CV via the PM function to enemy forces....it's like having Admiral Nimitz during WWII telephone Japan ( or more accurately the enemy pilot loaded with bombs already in the air ) with exact CV location information.
Once you add in never ending supplies of planes in the MA & the fact that CV skippers can bring the CV in as close as they want to the land & get it sunk over & over without being court-martialed for dereliction of duty, the CV's really don't stand much of a chance; I suppose that's why the game is modeled to allow them to respawn.
I think if HTC removed the ability to PM other players it would increase the difficulty of the game a smidge, & then make the map scale & fuel burn 100% accurate a lot of these sorts of things would work themselves out. Maps would be ENORMOUS if they adjusted scale or the fuel burn would be really quick if the maps were stay the same scale. I don't know what other problems this would cause & I don't claim to know.
Until then, lets all get together & fly some cessnas without radios or compasses out over the pacific armed with .303's & try to kill each other for real. I think it would be safe to say,unless you have a parachute & a life raft, you'll drown or die in a crash after you run out of fuel...not be shot down. And even if you make it into the raft, you'll still never be seen again; the ocean is just that big.
And while your bobbing around out there all alone, you'll come to the realization....AHII is just a game & not real life!

so there will be parts of the real life struggle mirrored in the game that do not translate accurately & never will.
P.S. yes I was being sarcastic somewhat, I really do think HT should get rid of the PM function unless it has some higher purpose I am unaware of; which is entirely possible. The last time the HTC staff sat down with me & asked for my opinion on how to design their game....they didn't take enough notes, next time I'll bring legal pads & extra pens.

Yeah right!