1.Open editor
2.Place marksman
3.Preview mission
4
A. Go to urban prone position ("Z" followed by "ctrl"+"D" or "A"), press "/" to select the scope and aim with it
B. Go to prone position ("Z"),press "/" to select the scope and aim with it, roll sideways while aiming ("Q" or "E")
C. Go to the lower prone position ("Z" followed by "ctrl"+"S"),press "/" to select the scope and aim with it