It's funny how you say hunter sucks and you haven't even used gunslinger. Invisibility is great. I'm pretty sure when yoir character is dead in a nightfall you are gonna want someone to revive you. You can use invisibility to get the first hit in crucible as well because hunters don't show up on the radar. I use hunters and i am great with them. The player makes the class great. You obviously suck with the hunter. All in all, you just sound bias towards warlocks.