When you watch the best clans in the game in a tournament the hunter is by far the most used class. You see some warlocks and a few Titans at best. But bare in mind that is 6v6. I've played my friends Titan when we swap accounts in pvp, I do the worst with it. What stands out to me as a mostly mid to close range player is the lack of a offensive grenade, the melee range, and no blink. In my limited time on the class I would recommend striker and playing very defensively. You can't lead fights around corners with firebolt, axion bolt or the arc grenade similar to firebolt ( can't remember name atm lol). Lightning grenade is great, but it's strength relies mostly on leading players in to you and landing it on the side wall or zoning. FoH for groups, radiance, arc blade, golden gun and heavy. This is the only clarity I can give you with my limited Titan knowledge. The game is still a gun game so skill is transferable. But if you want to win in pvp I would recommend the Titan the least.