I got the game a few days ago. Though I only have 20 some hours into it I'm loving it. Here's some features that I dream about sometimes.
SAM site convoy. A convoy that can spawn, or be donated, that drives to a selected location and sets up a SAM site. Can have variations. An expensive R9 site. A cheaper smaller vehicle site. Etc. This would bring a lot of dynamisism to escalation.
Enemy AI repairing things. Maybe they do this, but I don't think I've ever seen an enemy AI helo in some jacknifes to repair their stuff.
Improved ground unit AI. Convoys that scatter when contact is made, or when they get bombed. Flee for cover in the woods, spread out so they can be taken out as easy. Make a line formation when contact with other ground units. This would make the front lines look more real. Bonus points if the faction AI could keep a reserve nearby to quickly reinforce battles. Just would be cool to see it all happening from the air.
Edit: I'd like to add a feature request. Lemme put a waypoint on the map dammit!