What are the mechanics of upgrading exotics? How does "sacrificing" old gear help new weapons? How, exactly, do the gunsmith bounties work? Limits for Legendary Marks? (Still 100 per type, or 100 in total...?) Is the Speaker evil? Why? Are we Dr. Shin? Will exotic perks be unlocked on exotic guns that haven't been upgraded by the start of TTK? Will current XP translate to TTK XP? What happens if you did not purchase or complete either of the two previous dlcs and bought TTK? Will the nightfalls be level 38? If we do not have TTK, can we still get good gear?