I don't think either are OP. but I don't agree that the fire bolt combo and wombo combo are comparable. Just on the fact that a hunter has to use both abilities to net for certain a single kill. Where as fire bolts can be spammed and kill multiple people a lot easier. And it's only your nade. Your charged melee has the ability to with dot kill the lowest armored people as well. So I would say sunsinger is stronger then night stalker in the lethality department. But nightstalker is superior in the support area.