Its not you as titans do appear to be a bit weaker in PvP. However after bringing my Warlock into PvP and realizing some stats my Titan has gotten much better. My current overall KD is no indication of that but my last 15-20 games with my Titan has been very good usually 1.5-2.5 KD. Striker is my go to subclass especially for control which can level the playing field with the press of a button. And since it can break through defenders shield and stop bladedancer and god mode for Warlock it has its uses. Defend zones more and you will see your KD go up. Its easier to hold one than to try to take one. If your like most titans out there, which I am, there is a superman complex where you feel you can run into a hail of bullets and survive lol.