Yep, I used to spend hours just adding static units and vehicles, making sure there was moving vehicle activity when the player took off, as well as when he returned to base.
I used to get lost for hours in tank battles. Balancing the sides to that there was action the entire time, creating tank battles in towns, etc. Things the player never noticed I'm sure. I'd never do that now, but I had fun at the time.
not finished by any means and i can only claim it works in official patch (not alpha)- the new takeoff routine can make some of the formation join ups go awry