One of my biggest requests is to be able to see friendly Radar bubbles. When you build a radar you can see the outline of the area it effects on your map but if a friendly can has built a radar, even though that radar works for me and I can see things inside their radar, I would love to be able to see the radius of their radars as well, as I often times find myself building radars where they aren't entirely needed as I don't know where my teammates Radars area of effect is.
So basically in short, I would love to be able to see the out line of the area of effect of friendly radars as well as my own.