v2:
Trying to find some unanimity. I see Terrin wanting info for the gate. If we do that, then I suggest asking the (dead) Orc (in orcish)
1. What is your name?
2. What last request can we fulfill for you?
(offer the dead something. If they cuss us out (as I expect the cultist would), then the rest is moot in any case. If they have a request, that gives us nominal leverage.)
3. What is the password at the gate?
4. How many are inside?
5. What do you know that the cultists inside kept secret from you?
If I get three positive reactions to this post, I'll do it in character.