I tried to help this person get rid of those lines on the map.
I ended up making them appear & get stuck on my editor !
I tried every key and combination possible to get rid of them.
In the end I remembered what
djsatane said to try a while ago,
which worked on my GEM editor.
Close down the editor.
Go to your
My Documents folder,
then your
My Games folder where your Assault Sqaud profile is, and
delete the "
editor_desktop.set" file.
Restart the editor and those lines should be gone.