I'm currently lvling as merc pyro through pvp while questing as I must say I'm loving it,
Was doing well , now I'm 42 got the lvl 40 pvp armour and the 42 weapons also unlocked thermal D and must say what a massive difference,
I couldn't reall 1 v 1 before but now after learning to play pyro a bit more I charge into 1 v 1s without no fear and almost every signle time I win