To be fair, hunters don't have any support roles unlike both the Titan and the warlock. The gunslinger's are useful for dispatching oracle, but not so much for taking care of the relic witch is probably best suited for a warlock Sunsinger. And Bladedancers are utterly useless, sure maybe the invisibility would be considered useful but considering the fact that there's 6 people in the fireteam with "hopefully" experienced players you really wouldn't have to worry about that.