I play hunter, there is nothing underpowered about it. The hunter subclasses are pure dps, so when measured by offense and defense, the hunter isn't over-powered compered to the other classes, it is like the assassin-class. High burst-dps, low defense. When you enter arc-blade mode though, you gain about 50% damage resistance. And it doesn't take much skill to spam the RB/R1 button. Play gunslinger, it takes skill and probably has the most balanced super in the game. Small window of time to use it, get 3-4 shots of instant-kill, works just like a handcannon, and you get little to no damage resistance.