These lines:

Are really visually unappealing. I actually thought I was having some sort of graphical corruption because of they way they look when zoomed out a bit, as they are present on the main map. I realize you can turn off the grid in the tac map, but that's not much of a solution. I don't see what point they serve, other than busying up the grid and creating some weird distortion when zoomed on the main map.

Zooming out causes them to simply muddy up the textures when viewed from a distance, please get rid of them.