Here's the deal. I've found that when working on a mod that includes blood that stays around for a while, adding a Scanner-type powerup (reveals ALL actors on the map) can be quite nasty. Since Scanner items show every last thing, you can quite easily tell where big battles have occurred... But you can't see map features because of all the clutter. Blood, shell casings, you name it.
Is it possible to maybe add a flag that foils Scanner powerups for just such a thing, similar to how +NOFEAR foils fear-inducing powerups?