Yes, it looks like Treyarch dropped a stealth update in Season 5 of Black Ops 6 Zombies that quietly enhanced the Napalm Burst Ammo Mod, making it a horde-clearing monster—especially with the right augments. This "secret buff" isn't officially documented in patch notes, but community testing and breakdowns confirm the changes. I'll break it down step by step based on recent reports and gameplay demos.

Napalm Burst is one of the Ammo Mods (AATs) in BO6 Zombies. When equipped on a weapon, it has a chance to ignite zombies on hit, dealing damage over time (DoT) through fire ticks. It's great for crowd control but was previously underwhelming after a nerf in Season Zero. Now, with these tweaks, it's competing with top mods like Dead Wire for efficiency against regular zombies.
In Season 5, Treyarch made unannounced adjustments to make Napalm Burst more reliable and potent:
Other augments like Thermite (increases all ticks to 31% damage) and Extension (doubles burn duration for better elite/special zombie damage) pair well, but the real insanity comes from combinations.
The standout setup is pairing the Major Augment Firebomb with the now-fixed Incendiary Minor Augment. Here's how it works:
This creates an explosive domino effect that can wipe out entire hordes from a single proc, averaging 16-19 kills per activation. Gameplay clips show it clearing massive groups in seconds, with flames and blasts chaining across the screen—far more effective for crowd control than before. It's especially "insane" on high rounds where zombie density is high, potentially outpacing Dead Wire's stun chains in raw kill speed.
| Augment Combo | Best For | Avg Kills per Proc | Notes |
|---|---|---|---|
| Firebomb + Incendiary | Horde Clearing | 16-19 | Chain explosions; limited by zombie proximity. |
| Thermite + Contact Burn | Burst Damage | 2-3 | First tick hits 55%; good for elites but not crowds. |
| Extension + Incendiary | Special/Elite Focus | 4-6 | Doubled duration for sustained DoT; spreads moderately. |
Players are hyped, with some calling it "way better than Dead Wire" for its visual flair and kill potential, but there's worry Treyarch might nerf it again if it dominates too much. It's not perfect—activation chance is still RNG-based (around 5-10% per shot, depending on weapon), and it struggles against armored elites without augments. For best results, pair it with high-fire-rate weapons like SMGs or the Beamsmasher Wonder Weapon.
If you're grinding BO6 Zombies, test this out on maps like Terminus or Liberty Falls. Check the full breakdown in the recent YouTube video for visuals, or the linked spreadsheets for exact math. Have you tried it yet? Let me know how it performs in your runs!