The description calls this "weird", which I don't think is fair, but it is detailed. As noted, paying attention to the manual is pretty important to work out what's going on. Choosing the squares to move to feels unusually clumsy, by comparison with the rest of the UI which actually flows pretty well once you've got the hang of what you're doing. This feels like the video equivalent of what "proper" wargames (measure the hexes, spend time with books of tables calculating precise angles and damage for mortars, etc) are to Risk, and there's definitely an audience for that.