Sorry, I am not sure about your question.
Without XVM, a camera line shows on the minimap if you select it in the game under "settings", doesn't it? I have 'Enhanced Minimap' selected OFF though.
With XVM active, when I have arty in Arcade mode, I have a camera line showing on the minimap. When I switch to strategic (arty) fire mode, the line disappears and I only get the aiming square showing on the minimap. I want the camera line to stay visible on the minimap when I switch top strategic overhead view.
I have tried installing Minimap7.rar as per your linked website but I cannot get that to work with my XVM. I think I need to modify my XVM not install another mod to get it to work.
Thanks for the reply!