I know I missed this session but I still want to include my thoughts on radar: I agree that the helmet radar could use a change, but I don't think it needs much change. I like ETOX's idea - make the helmet only show things that are in the player's front 180 degree arc (Maybe 270?), sort of like the AVP motion tracker.
As for alien radar I'd like some kind of green blip for friendlies, it'd make coordination a bit easier.