it would be nice to have a Trapdoor type mission that didn't have the hatches..
there are some squishies that farm with extreme efficiency. that highly specialized example might be too specific. controllers do well.
and..
to the OP
The Controller is at the same time the weakest and yet the most powerful of the archetypes. The Controller has few offensive attacks and possesses few hit points. But the Controller has access to a range of powers and abilities that no one else does. Armed with these powers, a Controller can affect the behavior of villains, from freezing them in place, to putting them to sleep, to routing them away. Armed with such abilities, the Controller is the backbone for any super group, but the Controller depends upon their teammates for protection.