New Character in Nightfall

I searched and couldn't find anything.
I just took a character to NightFall (Assassin from Factions).

The only quest I can find is from First Spear Dehvad for 'Command Training'. But, this needs a hero and I don't have any heroes yet!!!

What else should I do?

Theres a primary quest in the sun docks that will give u heroes. Besides, u can get Zenmai a sin here in factions by takin the quest gain zenmai from imperial guardsman linro if u cant get the quest in the sun docks from some reason.

Grab the quest "Battle Preparations" from Seamarshal Bendro in the Sun Docks. This will unlock/give you the heroes Koss, Dunkoro, Melonni and Tahlkora.

And further out in the Plains from where you get those heroes is the Zaishen group, which will allow you to choose the ranger or the ele and get the quest for that choice.

Don't forget to head down to the Issnur Isles and the Keys to get your first Treasure Chest and Buried Treasure items.