once you have the emblems and shaders and the tempering buff (you can buy this more than once, each lasting 12 hours) you can rank up pretty fast especially if you keep finishing the IB bounties. Definately best to be in a fireteam i had far more wins than losses that way. Have just realised that i haven't really told you anything that Grinderman hasn't already lol Also, for pvp in general its better to try and stay with your teammates, concentrate on holding 2 of the 3 zones then the enemy are forced to spawn around the 3rd zone so you know whereabouts they will be coming from, you also get a lot of extra points from kills when you are defending a control point. Good luck