Well, you can do most of those things in Gunship, as long as the units you mention are written into the mission. Whether or not the way it's implimented suits your tastes is another question, but it all works now. (Still working on the Navy part...) GS is essentially a sequel to M1 Tank Platoon 2, so alot of the support unit aspects were already built.
I think at least some of those features are available in LB2 and EECH, too, but I don't know alot about that.
Designers must have a hard time deciding what to include in a single title. Like everything else, it's not easy to get everybody everything they want.
My .02
fng