i haven't really understanded. When i flight free flight if i shoot a vikhr-m against a building, an house it explodes. Or at minimum it takes damage. So the problem is that you can't mark a non-airport building as enemy. You should shoot on them and then see. but if you absoluty want to have a visible enemy static building then go to the ME and place an object over a map, select static object and you will have that visible.