Another great analysis. So much to think about in this game.

I think the radar in the communication array may be ground radar as well (QL5) (Edit: it is not)
Also the arena powersuit has ground radar (QL5) I verified with @elindos that the powersuit will take the VX and I suspect the communications array will Too (edit: it will not)

Also the radar array specifies ground and orbital radar but everything else just says radar, any thoughts on that?