Speaking of mines. I have an idea to add a randomly generated landscape inside this object. Considering the wide variety of mountain generation, each capture of a mine will be different from the previous one. In addition, at speeds 9-10, capturing it will already be impossible. For example, on the Information Earth, I barely managed to micro-manage 70 iron golems, and not without losses (due to the terrain, some golems managed to go around the mountain, while others didn't, and sometimes the situation was such that they were all scattered and reached any point).
In other words, with such a fix, it will not be possible to get a convenient construction squad here, no matter how hard you try.
But yes, I didn't take into account many factors (for example, how it will look with several filled stacks), how much more difficult the capture will become for an ordinary army, and most importantly, what is the complexity of the technical implementation(?).

However, as it seems to me, such a change will fit perfectly into the game, and this addition will not break the canons of the classic game.