Adding new ships.

Hi I’m new to all this modelling and really, I don’t understand any of it or who to do it either. I was taking a look at that duelist class heavy corvette and I loved it now my only problem is I don’t know how to get it into my game so I can use it. I was hoping that someone could send me instructions in “detail� on how to put it into the game.

Thanks in advance. 🙂