Quick answer
Work base camos on your most-used guns first, then attack cross-weapon and mastery challenges once you've got a few golds banked — trying to rush mastery camos before your base unlocks are done just means repeating the same challenges twice.
How Camo Progression Is Structured This Season
The standard structure holds: per-weapon base camos unlock through weapon-specific challenges (kills, headshots, multikills, no-attachment kills, and similar), gold requires clearing a full weapon category, and mastery tiers above that require gold across an entire class or the full arsenal. The higher tiers are cumulative — you can't skip ahead by grinding one gun harder.
Efficient Challenge Order, Weapon by Weapon
Front-load the challenge types that overlap with how you'd play anyway — headshots and multikills tend to happen naturally in objective modes, while niche requirements like no-attachment kills or specific-equipment kills are better saved for a dedicated session where you're not also trying to win the match. Doing the awkward challenges in their own focused session is faster than trying to squeeze them into normal play.
| Challenge type | Best mode | Note |
|---|---|---|
| Headshots / kills | Objective modes (Hardpoint, Domination) | Happens naturally with high engagement volume |
| Multikills | Team Deathmatch | Higher kill density per life |
| No-attachment / niche kills | Dedicated bot lobby session | Isolate the awkward requirement instead of fighting for it in live matches |
Zombies' Role in Camo Grinding
Zombies challenges contribute to weapon and mastery progress too, and BO7 Zombies is about to matter more for this: Season 5 Reloaded is expected to bring Rex Infernus, the round-based finale closing out the current Dark Aether arc, with a proper main-quest Easter egg tied to exclusive mastery camos and calling cards you can't get anywhere else.
Heads up
Rex Infernus is expected around Aug 20, 2026 per community trackers — that date isn't officially locked by Treyarch yet, so treat it as a target to prep for rather than a confirmed drop.
Where the Grind Gets Slow
The last stretch of any camo grind is almost always the same problem: a handful of niche challenges on guns you don't naturally use, standing between you and mastery. That's the point where a bot lobby session or handing the weapon leveling off directly saves the most real time — see the weapon leveling guide for prioritizing which guns to level first. cod-weapon-level-services covers the repetitive per-weapon work directly if you'd rather spend your own playtime on the Rex Infernus Easter egg instead.