You dispatched President Kimball with real skill. Right under their noses, too - what a humiliation.Caesar

Arizona Killer is a main quest in Fallout: New Vegas and an achievement/trophy for all platforms.


Aaron Kimball, President of the New California Republic, is making a visit to Hoover Dam to improve morale among his troops in the Mojave. His assassination would devastate NCR forces and inspire Caesar's armies.

Quick walkthrough

Main Quest: Arizona Killer
Rendezvous with Cato Hostilius.
Infilitrate Hoover Dam and wait for the President to arrive.
Assassinate President Kimball.
Reward: Legion fame
Leads to: Veni, Vidi, Vici

Detailed walkthrough

After receiving instructions from Caesar (or Lucius, if Caesar is dead), the player character needs to meet Cato Hostilius, camped northwest of Ranger Station Delta. When spoken to, he will present the player character with a set of NCR armor and suggests planting a bomb on the Bear Force One (the player character can receive the Vertibird bomb from him if their Explosives skill is at least 50). Afterwards, he will make his way to Hoover Dam and blend into the crowd of spectators.

The entire area of the Dam is heavily guarded by combined patrols of NCR troopers and Rangers. The latter can see through faction disguises, the NCR will always be hostile when the disguise fails due to the failure of Don't Tread on the Bear! The player character has a limited time to make some preparations before talking to Cato again in the crowd and telling him that they are ready. Waiting for too long (well over an hour of real time), leaving the location before completing the assassination, killing any ranger atop or in the immediate area of the visitor center (even quietly, this includes the trooper Jensen) or not arriving at the dam at all will fail the quest.

Immediately after Cato is told that the player character is ready, the Bear Force One will arrive and land on top of the visitor center. President Kimball will make his way to the stage to deliver a speech. If there is any suspicion that an assassination attempt is imminent, the Rangers will interrupt and hurry the President back to the Vertibird or a secured location beneath the helipad if the aircraft is inoperable. Otherwise, after the speech ends, the President and his security detail will simply leave.

Note: Drawing a weapon while near the visitor center and after the president has arrived will result in the President and NCR reacting as if he had come under attack, even if the Courier is hidden and has not attacked. However, the NCR will not turn hostile unless they see through the Courier's disguise.

The President's death completes the quest. It will fail if any of the above mentioned criteria are met.

Assassination methods

Any method that involves destroying the Vertibird with Kimball aboard, employs explosives or high impact projectiles (Gauss rifles for example) runs the risk of making President Kimball's suit and the Meat of Champions perk unobtainable due to the inaccessible or lost corpse.

Science or Repair

  • Sabotage Bear Force One's flight computer.
    • This is done using the computer terminal inside the visitor center (50 Science); the Vertibird does not have to be on the helipad. When the Vertibird lands the program will be uploaded automatically; the player just has to sit back and watch as it crashes when leaving the dam.
  • Program the anti-aircraft gun to shoot down the Vertibird.
    • This is done using the console at the top of the exterior staircase (50 Science), just east of the visitor center door (next to a ham radio). The gun will spin around and take out the aircraft before it gets over the dam.
    • This is the quickest method of assassination, due to not turning the NCR hostile and the fact that Bear Force One gets shot down before it can cross over the dam. It also does not require Bear Force One to land.
  • Rig the anti-aircraft gun to explode.
    • This is done using the console at the top of the exterior staircase (50 Repair), just east of the visitor center doors (next to a ham radio). The gun will explode just before Kimball calls up Jeremy Watson.

Energy weapons, Guns or Explosives

  • Shoot down Vertibird with personal weapons
    • The Vertibird has a high Damage Threshold and will require multiple shots from a powerful weapon such as the YCS/186 or anti-materiel rifle (even with max charge or armor piercing rounds), on all but the lowest difficulty settings.
  • Traditional sniper assassination.
    • Snipe the president using a long-range weapon. There are two notable locations: the top of the observation tower located on the rim of the Dam behind the stage (it is necessary to silently eliminate a Ranger sharpshooter on top of it first) and the base of the rocky ridge in front of the visitor center.
    • For the former option, if the player has high Sneak and a silenced long range weapon (such as a modified sniper or Varmint rifle), it is possible to kill everyone silently. It makes the getaway easier.
    • For the latter, a silenced long range weapon is recommended also. It is possible to sneak kill the president, retreat without taking a hit and quickly fast travel.
    • In either case, a sneak attack critical is required to ensure a one-shot kill, as Kimball has above average health and can withstand a non-critical headshot from most rifles.
    • For the Gun Runners' Arsenal challenge Sic Semper Tyrannis, a well-placed shot from the Hunting revolver can complete the challenge alongside the benefits of killing Kimball from a distance.
    • With a Stealth Boy, the player will be able to sneak up onto the stage behind Kimball, and with a silenced weapon can shoot him and sneak away without being detected.
  • Feel the burn.
    • Use heavy incinerator, flamer, 40mm incendiary grenades (grenade launcher), regular incendiary grenades, fire bombs or the incinerator to roast the president, his security detail and spectators.
  • Plant a bomb on the Vertibird while it's on the helipad.
    • Cato will provide the explosive necessary to blow up the Vertibird when it takes off if the player passes an Explosives skill check of 50; it can also be pickpocketed from him. Accessing the helipad requires bypassing Jensen, the player can sneak past him, persuade him with a Speech skill check of 50, or dress as an NCR engineer (one is in the visitor center). Once planted, the bomb will explode when the Vertibird takes off.
  • Plant C-4 in Jeremy Watson's helmet.
    • Jeremy Watson is an NCR trooper who is going to be decorated by Kimball. He is missing his helmet, which is on a table next to the stairs below the visitor center. Planting C-4 in the helmet requires an Explosives skill of 50 and a brick of C-4. Watson can then be pointed towards his missing helmet. When he retrieves it, he becomes a walking bomb that can be detonated when the President turns to decorate him. You will have to wait about 2 minutes into the President's speech.
  • Place C-4 near Kimball's route.
    • C-4 explosives can be placed anywhere near the President's route to and from the helipad. The best location is the middle of the helipad (which requires bypassing Jensen), where it can be detonated to kill the President and his security detail when they step out of the Vertibird.
  • Create other human bombs.
    • Requires planting several C-4 charges on Cato, Jeremy Watson, or any other NCR trooper who is close to the stage or the President's route. All of these can be later detonated simultaneously with a detonator.
  • The big bang.
    • Use Euclid's C-Finder, a Fat Man, missile launcher or various grenade launchers to rain down death on Kimball and the crowd.
    • Destroing the Vertibird during his speech, causes Kimball to head to a safe room inside the dam, allowing for a secluded elimination.

Melee or Unarmed

  • The hands on method.
    • Kill the President in close combat. Definitely the hardest option, as the area is populated by high level NCR troopers and Rangers with powerful weapons.
  • Throwing for gold.

Quest stages

10 Rendezvous with Cato Hostilius.
15 Report to Cato when you are prepared.
20Quest finishedKill President Kimball.


  • If Colonel Moore has been killed at any point prior to starting this quest, it will fail immediately after being activated.
  • If the quest was failed by not attacking Kimball or letting him get away, Caesar will respond furiously when reporting back to him. He will ask why they didn't attack him or how did they fuck it up. Depending on the response he will say that if not for their previous service he would have them crucified and that he will overlook the error, moving on to give Veni, Vidi, Vici. Responding that the player character changed their mind will either make him warn them about disobedience or turn hostile.
    • If Lucius gave the quest instead, he will be more lenient and mention that it is unfortunate they weren't able to take advantage of the opportunity to kill him.

Behind the scenes

  • A majority of this quest was implemented by Charles Staples.[1]
  • The title is a reference to the song "The Arizona Killer", popularized in the 2007 film 3:10 to Yuma. The song was written by Katie Lee who adapted it from an older 1942 song "The Tennessee Killer".[2][3]


  • Has platform::Playstation 3Icon ps3.png If the player character travels to the Fort, kills Caesar/Lucius and then returns to the Dam, President Kimball will be dead and characters neutral to the NCR will treat him as an assassin. [已验证]
  • Has platform::Playstation 3Icon ps3.png Has platform::Xbox 360Icon xbox360.png Cato can spawn very close to the cazador nest, putting him in danger of death from the moment the quest begins. To avoid this, fast-travel to the area before taking the quest, clear out all the cazadores, and then go to the Fort to receive the quest. [已验证]
  • Has platform::Playstation 3Icon ps3.png Has platform::Xbox 360Icon xbox360.png If the player character visits the Dam after receiving the quest but before making contact with Cato, the quest will automatically fail when he leaves the Dam area. If the player waits at the Dam without having met Cato, the President will never appear. [已验证]
  • Has platform::PCIcon pc.png Has platform::Playstation 3Icon ps3.png Has platform::Xbox 360Icon xbox360.png Sometimes the quest will fail immediately once started, forcing the player character to report failure to Caesar. This usually happens if a specific male engineer stationed at the Dam has been killed prior to starting the quest, as he is a disguised Legion soldier. The death of this engineer sets a number of variables which set the NCR trooper guarding Kimball on alert, thus automatically failing the quest once it is taken. [已验证]
  • Has platform::PCIcon pc.png Occasionally, Kimball's Vertibird never arrives at the Dam, making this quest impossible to complete without the use of console commands. Can occur when reloading saves during the mission.[已验证]


Main quests
Act 1Ain't That a Kick in the Head · Back in the Saddle · By a Campfire on the Trail · They Went That-a-Way · Ring-a-Ding-Ding!
Act 2Wild Card (Wild Card: Ace in the Hole, Change in Management, You and What Army?, Side Bets, Finishing Touches) · The House Always Wins (I, II, III, IV, V, VI, VII, VIII) · Render Unto Caesar · Et Tumor, Brute? · Things That Go Boom · Kings' Gambit · For the Republic, Part 2 · You'll Know It When It Happens/Arizona Killer
Act 3No Gods, No Masters · All or Nothing · Veni, Vidi, Vici · Eureka!
Side quests
New California RepublicAnywhere I Wander · Back in Your Own Backyard · Bitter Springs Infirmary Blues · Boulder City Showdown · Can You Find it in Your Heart? · Climb Ev'ry Mountain · Don't Tread on the Bear! · Emergency Radio · Eye for an Eye · Flags of Our Foul-Ups · Hard Luck Blues · I Don't Hurt Anymore · I Put a Spell on You · Keep Your Eyes on the Prize · Medical Mystery · No, Not Much · Pressing Matters · Restoring Hope · Return to Sender · That Lucky Old Sun · The White Wash · There Stands the Grass · Three-Card Bounty · We Will All Go Together · You Can Depend on Me
Caesar's LegionBeware the Wrath of Caesar! · Caesar's Favor · Caesar's Foe · Caesar's Hire · Cold, Cold Heart · I Hear You Knocking · The Finger of Suspicion · We Are Legion
The StripBeyond the Beef · Bye Bye Love · Classic Inspiration · How Little We Know · Pheeble Will · Talent Pool · The House Has Gone Bust! · The Moon Comes Over the Tower
Freeside & Outer VegasBirds of a Feather · Bleed Me Dry · Debt Collector · G.I. Blues · High Times · Someone to Watch Over Me · The Coyotes · Wang Dang Atomic Tango
BoomersAnt Misbehavin' · Sunshine Boogie · Volare! · Young Hearts
Great KhansAba Daba Honeymoon · Cry Me a River · Don't Make a Beggar of Me · Oh My Papa
Powder GangBooted · I Fought the Law · Run Goodsprings Run · Why Can't We Be Friends?
Brotherhood of SteelEyesight to the Blind · Still in the Dark · Tend to Your Business
OtherCome Fly With Me · Crazy, Crazy, Crazy · Ghost Town Gunfight · Guess Who I Saw Today · Left My Heart · My Kind of Town · The Legend of the Star and A Valuable Lesson · Unfriendly Persuasion · Wheel of Fortune
Companion questsED-E My Love · For Auld Lang Syne · Heartache by the Number · I Could Make You Care · I Forgot to Remember to Forget · Nothin' But a Hound Dog · One for My Baby
Unmarked questsA Bit of Slap and Tickle · A Final Plan for Esteban · Access Powers · All Fired Up! · An Ear to the Ground · Andy and Charlie · Arachnophobia · Arizona Scavenger · Barton the Fink · Bear Necessities · Big Winner (Atomic Wrangler, The Gomorrah, The Tops, Ultra-Luxe, Vikki & Vance) · Bounty Killer (I, II) · Brotherhood Bond (I, II) · Caching in at the Cove · Cajoling a Cudgel · Claws Mended · Claws Out · Dealing with Contreras · Defacing the Humble Stone · Democracy Inaction · Don't Poke at the Bear! · Eddie's Emissary · Exhumin' Nature · Fight Night · Flogging a Dead Corpse · Friend of the Followers · Gland for Some Home Cooking · Harder, Better, Faster, Stronger · Hat's Entertainment · Help for Halford · Hidden Valley computer virus · Highway to the Danger Zone (I, II) · Honorary Rocketeer · I Love Bananas · Iron and Stealing · Keith's Caravan Charade · Laurifer Gladiator · Lenk's Bad Debts · Lily and Leo · Long-Term Care · Malleable Mini Boomer Minds · Maud's Muggers · Meeting an Equal · Missing a Few Missiles · Most Wanted · Not Worth a Hill of Corn and Beans · Old School Ghoul · A Pair of Dead Desperados (I, II) · Papers, Please · Pistol Packing · Playing on the Old Joana · Poor Meat Never Makes Good Soup · Powder to the People · Power to the People · Razzle Dazzle! · Reach for the Sky, Mister! · Rest and Resupply · Ringo's Caravan Rules · Rotface's Loose Lips · Saving (or Savaging) Sergeant Teddy · The Screams of Brahmin · Silus Treatment · Short-Term Treatment · Smooth-Talking Criminal · The Star Showdown · Strategic Nuclear Moose · Straus Calls · Strip Search · Suits You, Sarah · Tags of Our Fallen · A Team of Moronic Mercenaries · Thought for the Day · Tourist Traipse · Trudy's Radio Repair · A Trusted Aide · Useless Baubles or Fancy Trinkets? · We Must Stop Beating Like This · We Must Stop Meeting Like This · Wind-Brahmin Wrangler · You Gotta Break Out a Few Eggs · You Make Me Feel Like a Woman
Add-on quests
Dead MoneySierra Madre Grand Opening! · Find Collars (8: "Dog", 12: Christine, 14: Dean Domino) · Fires in the Sky · Strike Up the Band · Mixed Signals · Trigger the Gala Event · Put the Beast Down · Last Luxuries · Curtain Call at the Tampico · Heist of the Centuries · Big Winner, Sierra Madre
Honest HeartsA Family Affair · Arrival at Zion · Bighorners of the Eastern Virgin · Chaos in Zion · Civilized Man's Burden · Crush the White Legs · Deliverer of Sorrows  · Departing Paradise · Flight from Zion · Gathering Storms · Gone Fishin' · Happy Trails Expedition · Prisoners of War · Retake the Bridge · River Monsters · Rite of Passage · Roadside Attraction · Sanctity of the Dead · The Advance Scouts  · The Treacherous Road · The Grand Staircase · Tourist Trap
Old World BluesAll My Friends Have Off Switches · A Brain's Best Friend · Coming Out of Her Shell · Field Research · He Came... And Went · Influencing People · Midnight Science Fiction Feature! · Old World Blues · On the Same Wavelength · Picking Your Brains · Project X-13 · Sonic Emitter Upgrade · Welcome to the Big Empty · What's in a Name? · When Visitors Attack! · X-2: Strange Transmissions! · X-8 Data Retrieval Test · X-8: High School Horror! · X-13: Attack of the Infiltrator!
Lonesome RoadThe Reunion · The Silo · The Job · The Launch · The Tunnelers · The Divide · The Courier · The End · The Apocalypse