Play a titan before you make assumptions. Play a hunter before you make assumptions. Play a warlock before you make assumptions. Just because you get your ass kicked up and down the planet doesn't mean someone is OP. It just means they know where their class is good. EVERY class has their strengths and weaknesses. Don't get close to a titan and watch them fight you just like anybody else. If you get close to a practically melee only class you deserve to die. Or at least have a freakin' shotgun ready. Do you know how many times I've died to a shotgun using shoulder charge? This is why you need to PLAY the class. Not CRY about it. And before you take this advice and go get scrubbed up and down the floors by their guns, try the gun before you cry nerf. Some people are just better with certain guns than others.