They are located in the Post Production office next door.
Chef Mike Haracz and former head chef of McDonald's.
When participating in Lets Plays, they generally just pick a direction and goes, usually ending up failing miserably but occasionally, through sheer luck, inflicting a on the other players to their absolute bafflement.
Knuckles Dawson was one the original achievement hunters for Rooster Teeth back in day he created a large library of achievement videos while narrating the viewers through the achievements.
Matt successfully managed to get Sugarcube away from one attempt, where Ryan nuked himself and an accompanying Jack.
Ryan is notorious about only drinking diet coke, as well, and both of them try not to go home to their children noticeably drunk.