If you have tried grinding Fire Works kills in Call of Duty: Black Ops 7 Zombies, you already know how rough it can get, especially if you are not using a proper setup or something chill like a CoD BO7 Bot Lobby to practice. The game is super strict about what counts. If your bullet damage drops a zombie before the Fire Works effect actually procs and finishes the kill, you get nothing toward the challenge. So you cannot just hose down a horde and hope it works out. The Fire Works burst itself has to land the final blow, or the kill may as well not exist for your camo progress.

Setting Up Fire Works Right

Before you queue into a match, spend a bit of time in the menus. It feels boring, but it saves you way more time later. Do not go in with the base Fire Works Ammo Mod and expect anything good. Hit the upgrades wall first and push for the Starburst augment. That is the piece that really flips the switch. Starburst makes the Fire Works shot pop into an instant explosion that spits out flares, so you are doing splash damage to everything clumped nearby instead of tapping one zombie at a time. Without it, you are basically poking holes in the wave. With it, you are detonating pockets of the map.

Stacking Augments For Bigger Pops

Once Starburst is online, you want to pair it with the Starlight augment as soon as you can. Starlight is all about volume; it bumps up how many flares spawn when Fire Works triggers. That extra spread means more zombies tagged on every activation, so each proc feels like a proper mini nuke instead of a small pop. With no augments, you might see 5 or so zombies drop per burst if things line up well. With Starburst and Starlight together, those numbers can jump fast, and suddenly 10 to 20 kills off a single activation is not that rare when you are playing it right.

How To Play The Wave

When you finally load into a match, make sure your augments and any boosts are already locked in before you start tracking challenge progress. The gameplay loop is slower than most people think. You are not trying to clear every zombie the second it spawns. Use your Aether Shroud to grab breathing room or reset when you get boxed in, then focus on building a tight train. Drag the horde around the map until they are stacked right behind you in a clean line or ball. Once they are packed up, turn, fire into the middle, and wait for Fire Works to go off. With Starburst doing splash and Starlight throwing extra flares around, one activation can shred a big chunk of the round and push your kill count up in huge jumps.

Fixing Bad RNG And Speeding Up The Grind

Some runs, you will feel like Fire Works just does not want to trigger at all. If that is happening a lot, slot in the Citrus Focus augment. It leans the odds in your favour, so your ammo mods fire off way more often, which basically patches the worst RNG moments. Once everything is set up and you are cycling hoards correctly, the whole Fire Works challenge stops feeling like a slow slog and turns into a pretty quick loop you can repeat across maps or even in safer BO7 Bot Lobbies while you learn routes. Get the rhythm down, and you can reuse the same style for other ammo mod challenges later, just swapping in whatever effect you need for the next camo grind.