It would be nice for ally mines to look a different color on radar because when there is multiple people mining each other they all show up as yellow on the radar. You can't figure out which ones are enemies until you are hit by or being zapped by one. Plus if an ally comes into the sector they can tell who's mines are what so they can check if its okay to dock or what not.

I agree that the HUD needs more differentiation. I've never run into this problem personally, but I'm betting that in a large war this could be a problem.

Tangent: another thread on mines is here http://vendetta.guildsoftware.com/?action=msgboard&thread=1741