Everyone seems to hate heavy. So here's some things that could change that..
They could remove heavy ammo from certain crucible games,they could make it to where one team goes bottom and the other goes top to get heavy to compete,or they could keep it the way it is.
What would you want? I'd go with making it team heavies. That way if the enemy supers your heavy,you'd still have a chance to go back and get it. But it would last for only a minute. I know there's flaws to it but it would make things better. They then shouldn't have to remove heavy.