Well since since liked that, let me float this by y'all, if ya want to give a yay or nay. Much of this part was inspired by my days in Armada playing with squads. So ground war units can move around and shoot and score objectives and stuff, without getting in the way of the air war models and combat engine. Also super stat light so they don't take too much time to resolve.
Ground objects were represented by round (infantry and vehicles) or square (buildings) "pogs" about the size of a small base. The stats would be printed directly on the pog, and they could have two sides to be different units like ship tiles are.
Their attack was represented by a red number as usual of 2 or 3, but all ground units only score normal hits.* Defense was a static number of evades that you'd have to overwhelm, 0 for buildings, 1 for vehicles, 2 for infantry. Units and buildings just had a single number for health called 'endurance'. They still use normal range ruler, gaining an extra attack die at close, but an extra +1 to their defense at long. They resolve combat at the end of the activation phase, starting with the units of the player with initiative.
Infantry and vehicles can move, during the end of the combat phase within range one, starting with the units of the player with initiative. If they choose not to move they can instead 'achieve an objective' that they are touching.(Objectives being part of the new missions that would go with ground war.)