OK man, listen I have had many games go really well with my titan but as a player that has one of every class....take it from me the warlocks range on his melee is a big deal and the hunter being able to blink strike and the throwing knife for the gunslingers is just sooo much fun! What I'm getting at it is that the main weakness of the titan in PvP is the melee has no range. Yes you can use shoulder charge but its not guaranteed to hit and you gotta have a running start. Do what I did and watch some YouTube vids of some guys going in with titans and just learn from that. And if you want to be good with the titan in PvP learn how to throw the lightning grenade, and learn how to use the death from above effectively.... If done right, they will never see it coming.