I would love to see damage model worthy of 21st century, like in GHPC (Gunner HEAT PC armed vehicles simulator) for example. Damage there is not based on a large hitboxes + scripted response/decals/animation but instead projectile and fragmentation paths are traced and damage to various components and personnel is checked. You can even review it afterwards:
In DCS, at least in UH-1H Huey (which I love btw), damage model is very primitive. You can hit front of the chopper and after certain amount of "points" the main rotor or tail will fall off... Not a single paid model should act in this basic way in 2024.
Edit: typo