Black Ops 7 Legendary Launcher or Special Weapon is the requirement behind the Zombies Launcher and Special Camo Costume Party challenge. You need 100 kills with a Launcher or Special Weapon at Legendary rarity, so using the correct class at a lower rarity will not move the event counter until the weapon reaches the required tier.
The practical Black Ops 7 Legendary Launcher or Special Weapon route is to choose a Launcher or Special Weapon you can comfortably use in Zombies, raise its rarity to Legendary through the normal Zombies upgrade path, and only then count the 100 eliminations toward this event task. The challenge is about weapon rarity, not Pack-a-Punch level by itself.
Black Ops 7 Legendary Launcher or Special Weapon requirement
Black Ops 7 Legendary Launcher or Special Weapon kills must be earned in Zombies with the weapon at Legendary rarity. The target is 100 eliminations. Launchers and Special Weapons share the event category, so you can use either class as long as the live weapon rarity is Legendary when the kills occur.

Legendary rarity is not the same as Pack-a-Punch
Weapon rarity and Pack-a-Punch are separate upgrade systems in Zombies. Pack-a-Punch improves weapon performance, but a Pack-a-Punched weapon is not automatically Legendary. For this challenge, check the rarity colour or tier shown for the weapon and make sure it has reached Legendary before starting the 100-kill count.
You can still Pack-a-Punch the weapon as well. Stronger damage can make the farm easier, especially as rounds become more demanding, but the event wording names Legendary rarity specifically. Treat Pack-a-Punch as a damage improvement and Legendary as the condition that determines whether the Camo Costume Party kills are eligible.
Which weapon should you use
For Black Ops 7 Legendary Launcher or Special Weapon progress, the best choice is the weapon you can keep supplied and control safely against groups. Season 6 includes the Roc 20mm in the Special category, while existing Launchers can also satisfy the combined class if they are available to you and upgraded to Legendary.
Do not swap away from a working setup just because another weapon appears stronger on paper. The challenge only needs 100 kills once the rarity condition is met. A familiar weapon that you can use without repeatedly downing yourself or running dry is enough to finish the task.
Why the 100 kills may not count
If Black Ops 7 Legendary Launcher or Special Weapon progress is stuck, inspect the weapon rarity first. A high Pack-a-Punch level, upgraded attachments or strong damage output do not replace the Legendary requirement. Also make sure the weapon is actually categorised as a Launcher or Special Weapon rather than another class with explosive behaviour.
Check the tracker after a short group of kills once Legendary rarity is active. If the counter moves, continue the same run. If it remains unchanged despite the correct class and rarity, finish the activity, reopen the event tab and verify the displayed total before repeating the farm.
How this challenge connects to Malignant
Black Ops 7 Legendary Launcher or Special Weapon is one of the nine Zombies class challenges needed for Malignant. The other Zombies requirements include perk-conditioned Assault Rifle kills, Rogue Run SMG kills, a T.E.D.D. Trial Shotgun task, Mystery Box Marksman kills, Elite Sniper kills, Cursed pistol eliminations and a Pack-a-Punch III melee requirement.
Completing all nine Zombies tasks awards Malignant. Players chasing Oozed must then also complete Gravebloom, Grubs and Death Row in the other three modes, making this 100-kill Legendary task one piece of the full 36-challenge route.
Black Ops 7 Legendary Launcher or Special Weapon progress is easiest to manage when the live event tile is treated as the final checklist. Confirm the exact mode, class and condition before a long session, then check the counter after a small qualifying sample so the rest of the grind is based on progress the game is actually recording.
Black Ops 7 Legendary Launcher or Special Weapon should be checked in the live Camo Costume Party tracker after each completed requirement.
Official source: Call of Duty
