What would you change in Heroes of Might and Magic IV?

It seems the biggest problem in N-4 is the battlefield. Firstly, it's a double or even triple system of measurement (feet, meters, and something else that's unclear). For example, if a unit has a movement range of 5 (cells, meters), it means it will move 15 cells on the battlefield, with 1 meter = 3 cells (feet). The area of effect for a spell is 3x3 (12x12 cells on the battlefield, 1 meter = 4 cells (feet)) – and that's already inconsistent. Secondly, playing with the grid enabled on the battlefield is unrealistic, even for testing – let alone the fact that it gets in the way, and due to the pseudo-terrain, it's even impossible to accurately determine distances. Neither the direct attack range nor the melee attack range is clear – you place an archer behind a living Fortress, an enemy approaches, and even though they seem far away, they block the archer – did they reach out with a paw between the defenders? Thirdly, obstacles on the battlefield – you don't always understand what blocks ranged attacks, what blocks melee attacks, and what blocks movement. You can stand behind an impassable bush and still get hit with a sword, or you can walk through bushes that you thought were providing protection. And if a melee brawl with a dozen or so units occurs, you won't even understand who is hitting whom – you want to attack one, but another gets hit. Naturally, this is in comparison to the third game, where everything on the battlefield is laid out in cells. Here, there's a different graphics system – on the one hand, it's beautiful, but on the other hand, it's somewhat ill-conceived. Although, on the other hand, it's closer to real-world conditions, where distances in combat are determined by eye, not by a measuring tape.