Just an idea for the way radar shows range to other objects:

I can see that when objects are at the limit of the radar's useful range they fade out slightly, but would it also be productive to have the shade of colour start off quite dark for far away objects and quite bright for nearby objects? Four or five swatch shades would be sufficient and not too exact.

I think this would be very helpful in the clutches of battle to understand where the most obvious threat is coming from.