So I do not know if you already gave up working because of the frustrating Arma limitations like many other great modders but perhaps I can help a bit by adressing bugs. I have to say the framework is just awesome so far and your approach definitly is the right one.

The first bug I noticed is that if you load a infantry group in to a vehicle and then let the transport unload them the group gets disconnected from High Command and you have to add it back again via the add group order in the menu.

The second bug I noticed is that an ai squad that formed on an lead vehicle ignores enemies and does not engage. In your newest video I saw that you added the command to attach infantry to a vehicle. I hope there it is already fixed.

The convoy movement is one of the best I ever have seen. You have definitly created the best HQ mod so far. Only a few small features Dudas Mod has are missing. Like order helicopters and planes to land and setting their flying height. Pack/unpacking static weapons and artillery fire missions via waypoint. Please do not give up.