This has been going on for awhile now and I don't know why. I tested this out on another character but it seems to be working for hunter subclasses but not titan subclasses. Basically the kill stat tracker on emblems for titan subclasses does not go up even though I would kill enemies with my super, granade, weapon, melee it just wont go up. I have also tested this out on with my friend too so its not just my account I had him hop on his titan and check to see if it was happening to him too and it was doing the same thing with not tracking the kills for the titans subclass. Does anyone know why? Or is this a bug that has not been fixed?