Well I'm not a huge fan of the radar since I get killed a fair share by map watchers( also I personally believe it defeats people's reaction abilities in 1 on 1 encounters) I will say that once you learn it and if you have a friend or to who will back you it feels better. Started my first 5 games below a .5 ( usually a 1.4 - 1.6 in most games) but am now up to a .78. Not great by my standards but I feel like I am consistently getting better as I learn to use the things Bungie put in here.