“Again, goal number one is to eliminate Mr. House and install my neuro-computational matrix on the Lucky 38's mainframe! Given how you're a new arrival, I also recommend that you get to know some of the region's tribes, so you can decide how you feel about them! By the time you've finished up all of that, the Legion should be close to attacking Hoover Dam and we'll execute the last phase of the plan!”— Yes Man
When first entering the Tops during Ring-a-Ding-Ding!, instead of immediately going to confront Benny, one can talk to Swank, Benny's right-hand man, standing to the left of the greeter behind the front counter, and either pass three Speech checks or present piecesofevidence to convince Swank that Benny's turned traitor, leading to him returning the player character's weapons taken when they entered, making it so the Chairmen won't turn hostile if one does attack Benny, and finally giving them the key to his suite on the 13th floor to look for clues on Benny's scheme.
Go down the left-hand corridor, past the stairs and the gambling floor to four elevators; the only working one is the second on the right, which leads to the 13th floor of the Tops. Benny's suite is down the hall to the right with two potted plants in front of it. In the suite itself, the goal is to enter the bedroom and the closet door in the far corner, which opens to Benny's secret workshop where the Securitron named Yes Man resides. Talking to him reveals that Benny used Yes Man to gain access to Mr. House's data network in order to take over New Vegas, a plan requiring the platinum chip that Benny carries on him at all times. Once Yes Man gives up the entire plan, one begins the quest by asking if it's possible for them to hijack Benny's scheme in turn and take over themselves, a plan Yes Man agrees to but reminding that they will need the chip kept secure by Benny.
Getting the platinum chip[]
The rest of the quest plays out alongside Ring-A-Ding-Ding! in that the player character must chose a strategy for getting the platinum chip from Benny. See the appropriate section on that quest's article for details.
"Ace in the hole" is old American slang (dating from before the 1920s) used to describe something that can guarantee one's success in a situation when revealed. The phrase may have originated from five-card stud poker, in which one of the cards in each player's hand is kept face down (in the hole) and unable to be viewed by other players until showdown, thus not revealing the strength of the hand until the end.