That's for stages. They can get you through most of them quite easily. On the more difficult stages you'll need luck with their damage skills actually working. So if you're doing the harder ones expect to retry them several times.
As for def teams. Gerard and junia can be good with captain
Captain is good if u only AWAKENED him. His overall great on both PvE and PvP because of his stackable 4th and self healing properties. If you planning on putting stall team on defense, better plan on your skill synergy and focus upgrading all five hunters with decent equipments, jewels, and level skills. Though, Awakened Gerald outperform Captain in terms of defending and I recommend him.