The reason I brought up you main a hunter is don't try to know everything about the abilities if you hardly play that class. I barely play hunter so I'm not gonna say anything about their abilities because I don't know much about them. As for shoulder charge, it's not classified as a melee as it's in a different perk tree. It has a charge up time and a cold down time. It's very high risk/high reward and it's very easy to counter.