cojak121, I'm rank 101 out of 3 million players as a Titan. All 3 of my characters have a 2 + k.d and are in the top 1% of every category. Invisibility is garbage and the backstabbing perk works only off the melee cooldown, which is long because nobody should be stacking strength in their armor. Let me reiterate that all 3 classes that I own have double or better your k/d across the board. I know what I'm talking about.