Ranger,
I think Trap might have been on to something, meaning we already have convoys, trains, and barges.

Tanks and heavy armor rolling through the woods AI controlled (a much more difficult task).
Wouldn't it be easier
or not to put scaled down versions of the train ack, or CV auto guns onto the above mentioned vehicles? I love what you did with PTO harbor map, with gun placement. (dangit when I lost my cpu, I lost all the Pearl Harbor stuff that I was working on)
I am just wondering if there is something maybe not close, but in the direction of what Trap was saying? As for the AI planes and the ground. I wonder if they could be made to keep a certain altitude, unless they were rtb or taking off (something like that).