Part 16: Extras for A Traitor's Grave
Extras - Sounds
Briefing music, from the soundtrack: 03 A Traitor's Grave.mp3
Extras - Mission Images
The unused pre-mission images show the evil Mayor cutting a deal with a ghôl (seems a bit odd) and our heroes following their villager guide. The dwarf in the second picture looks wrong to me... I do wonder if maybe these pre-mission images went unused because Bungie decided not to introduce yet another art style into the game.
If you lose the mission, you see the Mayor reporting back to... someone. Hmm!