Redguard
Hoonding
"The Replicated Man" was a quest in Fallout 3 in which you had to help an Institute scientist named Dr. Zimmer track down a synth and bring him back so Zimmer could take him back to the Institute in the Commonwealth.
Basically this quest in Skyrim is set up in a similar way and maybe a hint by Bethesda on the location of Elder Scrolls 6.