Wild Card: You and What Army?

 is a quest in Fallout: New Vegas. Yes Man sends the Courier to The Fort to activate an army of dormant Securitrons.

Objectives

 * (Optional) Find Mr. House's hidden bunker, buried beneath the Legion stronghold at Fortification Hill

Walkthrough
is started by talking Yes Man in the rear of Benny's presidential suite on the 13th Floor of the Tops Casino.

The bunker is inside the weather station at the Fort. To gain access, either:
 * Have Caesar give you a quest to find the bunker and destroy it, if you come to meet him after killing Mr. House and installing the Mk. 2 securitron program. If you accept, he will let you enter, at which point you can either destroy the army or activate it; Caesar will assume that the rumbling of the Army activating was whatever you used to destroy it.
 * Kill Caesar to remove the Platinum chip from his body

To upgrade the robots, insert the Platinum chip. Otherwise, to stay a good character, simply fire one round into each of the 3 reactor modules.

Note
want to work with Ceaser's Legion you don't work too long for anyone else. For example if you want to work with the NCR and you work with Yes Man for too long a quest will be triggered.This quest is called Don't tread on the bear and states that if you work with Yes Man any further they will no longer work with you. This is the same with all major factions
 * If you agree to "destroy" House's robot army, you'll get your stuff back inside the Weather Station. Once you're finished upgrading the Securitrons, you have the option to kill the 3 Legion guards. If you do this, the rest of the camp will be none the wiser and you'll be able to run around The Fort with all your gear intact. This'll make taking out Caesar and his guards a lot easier.
 * Be sure that if you

Bugs

 * Caesar can glitch when you talk to him. He will tell you that he wants you to do something but the only option was "I'm done working for you".


 * If you progress too far in the storyline and do not visit the vault to upgrade the securitrons when you are first asked, a bug may prevent you from opening the inner vault door even though the platinum chip is in your inventory. Killing Caeser doesn't fix this.