1. What's the advantage of saving before an attack? When I encounter a location with a hidden enemy, I don't pay attention to the arrangement of my units. Let's say I like the location. But now I see that with this unit arrangement, I won't be able to win anyway. What should I do? I need to load the save from before the attack, rearrange my units as needed, and immediately attack that point on the map, without making additional save-loads. Then you'll get the same battlefield layout, but with the units rearranged. This works almost every time.
P.S. I'll buy some beer next week and give it a try, to see what happens.