What you just said has nothing to do with your original post. At all. In your OP your complaint is that he is lvl 25 and your 30. Amongst other things that had no direct definition of how you see the defense stat should work. With that said, I do however agree that the defense stat is garbage. With our defensive stat and our armor in our subclasses, we should be hella hard to kill period. Back to your original complaint. The answer is still this. You missed lol. Had you meleed him you probably wouldve killed him instantly if your 30. But bungie even stated that even fully upgraded blues shouldn't be taken lightly. So it's still working as they intended you just had bad luck