Upon entering recon bunker theta that paladin Brandis is supposed to inhabit I discover that its empty. He is simply gone.
I went through the following console commands:

Prid 000b877e (Brandis ref ID)
Moveto player

This makes him appear close to me in the bunker and he moves to the position where he is supposed to be.

Then the problem is that there is no way to interact with him.

I've tried deactivating/activating the ai via

Clicking on him during console mode so that his "code" appears then typing "tai" but it doesn't seem to do the trick.

Does anyone know how to "re"activate an npc thats part

Any ideas...?

Reload a slightly earlier save and try again? Perhaps the area didn't just load or initialise correctly when you discovered it or something.

Tried that. No difference...