all alone in the dark

Yes I am pretty sure i have completed it. I have tried my hardest to stay with the story line in night falls. I like this map alot and really enjoy it. I will double check my self on that quest to make sure and I will reply back if need be. Thank you for your help.
The part I am having problems with is finding is finding the person I am supossed to talk to outside the gate for the quest.

Make sure you are on that quest, might be good to go back and see if all the quests are done up to that one

A lot of people have various ways to get to the guy.

When I go out I go left at bottom.... ,go into fort... go anticlockwise on outer path till it stops..... then go hard left for a short distance,.... then go left up the stairs and
hold right till you come to steps on your left leading down

As you see you are now in the open with a few titans ..keep running straight ahead till the prompt appears on your screen from the guard asking for help.

kill of the few margonites speak to guy now your in next mission area.

Hope this is of some assistance