Cartographer

Question: Do I need to fully explore the beginning explorable areas in Factions and Nightfall to unlock the Cartographer titles? If so, I missed out on fully getting them on my map so will I ever be able to go back? I mean the VERY beginning like the training area. Not the whole first islands.

For factions, during festival events, the boardwalk area is the newbie area so you can go explore it then, for nightfall, not sure. Also not sure if you actually need it as each map has a certain amount of leeway, ie you can actually get around 105% on each map.

For Nightfall, no you don't need to hit that little island north of Chabek Village, but you will need the fields area between Kamadan & the Chabek, otherwise it would be unobtainable with non-Nightfall characters.