You can't get the staff these days can you? I'm working on a mod which adds Dawnguard outposts to Skyrim near or in cities and towns rather than plonking NPCs down who work 24/7 as they have no barracks and no sleep package. Three outposts have been completed so far but the problem run into is that NPCs are not using their patrol idles reliably when they should. This is most apparent when fast travelling.
For instance, I have created a new building outside Whiterun and placed the refs of six NPC in the internal cell, linked to patrol idles outside the stables and inside the city. When fast travelling to Whiterun the NPCs in the city are not there even if advance time one hour at a time. If I go looking for them 3 of the NPCs are still in their barracks and leave to go to their patrol markers when I enter the cell.
It seems NPCs don't like exiting interior cells and travelling to patrols for some reason unless you chase them up.
Hopefully someone can shed some light on why some of the NPCs are not patrolling when they should as until I can figure this out the mod is on hold.
Problem is not:
Game save, I've tested with clean saves...
Dawnguard Sentries and Outposts WIP File:
https://drive.google.com/file/d/0B297M_-UOeUsYTJBendUeGdmUWM/
http://martinjamesmods.blogspot.co.uk/