Roark files (Call of Duty: Ghosts)

Friends tell me, I downloaded the save from playground.ru to 101 (I was too lazy to look for all the files myself, so I think I'll download and listen) how is it? 100 and 1 percent more))) and in addition to 18 Roark files, there are three profiles - Elias Walker, Hash Walker and Thomas Merrick. I decided to replay and find all these files myself-Tell me where to find these three profiles in the game? I have not found any clues anywhere in the internet.