After you place the wall on the map, hit Esc so that you clear your selection, then double click the wall. You get a window with the object properties, including the rotation. You can either change it manually by entering the value or with your mouse by dragging the green line on the circle next to it (:D then hit ok to see the result).
wromania: I don't think the program keeps the achievements you get offline. Actually I don't think it will recognize achievements even if you briefly disconect during the mission. :) Maybe I'm wrong though.
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After you place the wall on the map, hit Esc so that you clear your selection, then double click the wall. You get a window with the object properties, including the rotation. You can either change it manually by entering the value or with your mouse by dragging the green line on the circle next to it (:D then hit ok to see the result).
wromania: I don't think the program keeps the achievements you get offline. Actually I don't think it will recognize achievements even if you briefly disconect during the mission. :) Maybe I'm wrong though.