Wild Card: Ace in the Hole

 is a quest in Fallout: New Vegas.

Quick walkthrough
After obtaining key from Benny head up to Presidential Suite. There is a safe next to the bar with weapons in it. Search around and make it back to the elevator door. then Benny will talk through the intercom and stand you up. There is a speech option that requires a level of 35. eventually the only text option is to threaten him, then 4 or 5 guards come through the door and the next step is to survive the attack. The 10mm machine gun from safe worked well to take them down quickly. Next the game tells you to go search Benny's room. One of the guys you just killed will have a room key to get up there. Next put away your weapon and head back down the elevator. Once on the casino floor. walk to your right down around the corner through the 2nd section of casino games to a row of elevators. Benny's elevator is the second on eon your right. Once riding the elevator you come to a hallway. To your left is two vending machines and a fire hose box. to the right are doors. Starting from the elevator, walking down the hallway of doors, the first one on your left is locked (average), there are bottle caps in the desk, a salesman weekly on the left bedside dresser, and a sexy outfit in the left bedside dresser. Exit the room and go to the next lock door on the right, that room had a bunch of pre war clothes in it. The next room on the right side has a programmers digest on the desk. The other rooms in the hallway have only perwar clothes. Then go through the big double doors and the yes man is hidden back through Bennys bedroom.

Behind the Scenes
The phrase "Ace in the hole" is used to describe something that can supply a sure victory when revealed.