The legendary Mustang & Sally pistols have made their explosive comeback in Black Ops 7 Zombies, bringing back the chaotic firepower and iconic sound fans remember. These dual-wield launchers remain one of the most powerful weapons in the mode — but unlocking them isn’t automatic.
To add Mustang & Sally to your arsenal, players must complete the Week 3 seasonal challenges. If you mainly play Zombies and don’t want to grind through Multiplayer, Warzone, or Endgame objectives, this guide will show you exactly how to finish the Week 3 Zombies challenges and unlock the weapon upgrade efficiently.

| Challenge | How to Complete | Reward |
|---|---|---|
| Get 200 Critical Kills in a single match using an SMG. | We achieved this easily in Paradox Junction by purchasing the Razor 9mm and upgrading it with Pack-a-Punch. Perks like Double Tap and Deadshot Daiquiri will easily help you complete this Challenge. | 5,000 XP |
| Get 25 Carnage Medals (Killed 15 Zombies rapidly with a Weapon) with Hipfire. | Upgrade any weapon you like, but make sure to equip Fireworks at the Arsenal. Grab Elemental Pop to increase the chance of Fireworks, and then spam fire without aiming. | 5,000 XP |
| Get 15 consecutive Critical Kills using a Sniper Rifle 10 times. | We used Pack-a-Punch on the Shadow SK with Iron Sights and Deadshot Daiquiri to make this Challenge a breeze on Paradox Junction. Just try not to miss your shots. It's far easier to unlock after Round 12, when zombies spawn more frequently together. | 3,500 XP |
| Reach Round 10 in Cursed with no Perks or Pack-a-Punch. | Don't equip any Relics for this Challenge, as it will slow you down. Instead, focus on building points so you can purchase Armor and the Mystery Box. While the Challenge says "Reach Round 10", you actually need to reach Round 11. | 3,500 XP |
| Consume 3 Epic GobbleGums. | Epic GobbleGums are noted for their purple rarity, and you can consume any three of them to complete this Challenge. If you don't have any but don't want to purchase them, then we have a guide for that. | 2,500 XP |
| Collect Loose Change 5 times. | Loose Change is acquired by going prone when facing a Perk Machine. This is easily done on Paradox Junction, as there are a multitude of Perk Machines within close distance. | 2,500 XP |
To obtain Mustang & Sally in Call of Duty: Black Ops 7, players must first progress with the classic M1911. The weapon itself isn’t unlocked directly — instead, it appears after upgrading the pistol correctly.
First, level up the M1911 until it reaches Level 28. At this level, you unlock the Akimbo attachment, which allows you to dual-wield the pistols. Once equipped, you’ll be using two M1911s at the same time.
Next, bring the dual pistols to the Pack-a-Punch machine. After upgrading the Akimbo M1911s with Pack-a-Punch, they transform into the powerful Mustang & Sally, turning your pistols into explosive launchers capable of clearing large groups of zombies quickly.
Because these weapons deal splash damage, it’s highly recommended to equip PhD Flopper before using them extensively. This perk protects you from self-inflicted explosive damage, preventing accidental knockdowns while firing at close range.