to add to this, for sub unless you have the cloak to basically one shot them the adds need to be controlled a lot more than the other dps and thats not just about slowing them, blind one at the start so you only have 2 running to the boss (especially important in the later waves) try to make sure you have 2 charges of dance available for when they spawn, if any adds get close to the goo kidney shot it your friend, as is vanish cheap shot.