Well, sorta! :-\
What I mean is, is there a way to """rotate""" objects in OFP?
I mean in the type of way we position objects in OFP. -We can place them where ever on the map, facing any directions and at any height. My version of rotating an object is more like leaning it 15 degrees vertically to the back, or lay a unit horizontally without having to kill him.
Though You're idea 'bout the walls is pretty good!
The walls I've seen were standing (vertical position) and rotated 90° to the side.