Hola, been on a little vacay, sorry for slow response. What @Krimson and @Six-Six are saying is accurate. And for a story gap between Neutropolis and First Ward I have two trilogies of canon derived AEs for those levels.
You don't have to take the Rift Mission at all, just go to The Doorman in the Imperial Underground, chat to him, then he'll send you through the door beside him into First Ward.