Duncan equips the Mad Jeff tank with a lava turret
Harry, Ravs and Osie join a three-episode stretch that also brings an approaching airship and a working radar system.
Why this story? The channel's weekly summary: what went up this week, what is drawing views now, and where the channel stands among similar channels.
Get the Heavy Flamer! | Jaffa Factory: Mad Jeff #45
Video summary
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- 4:41Duncan tests a lava-loaded handheld Chemical Sprayer inside the factory, accidentally setting Harry on fire.
- 7:12The crew mounts a Chemical Turret on the armored tank, then tests its controls with dirty water.
- 10:05Duncan and Harry reload the turret with lava to turn it into a flamethrower cannon.
- 12:55A desert test sends flaming bursts hundreds of blocks away.
- 17:00Harry and Duncan take the tank out against the nighttime mobs; its defensive test comes here.
The handheld version is hazardous enough. Duncan loads a Chemical Sprayer with lava inside the factory, sets Harry on fire, and earns a fairly practical instruction: "Stop flaming the base!"
In "Get the Heavy Flamer! | Jaffa Factory: Mad Jeff #45," the next step is to put that idea on a tank. Duncan and the crew mount a Chemical Turret, test its controls with dirty water, then switch to lava. The desert test sends flaming bursts into the distance. "Oh, that goes really far!" Duncan says, with Harry, Ravs and Osie along for the engineering session.
That episode drew the largest total audience of Duncan's three uploads this week, reaching roughly 29,000 views. The comments make a miniature workshop of their own: viewers suggest moving the weapon lower and farther forward, ask about automatically refilling defensive turrets, and catalog the base's wonderfully awkward machinery, including a tank door that crushes its occupants.
The custom modpack and adventure map, created by Harry and Nick, kept the crew occupied beyond flamethrowers. "Disciples of the Shulk | Jaffa Factory: Mad Jeff #46" introduces an approaching airship with uncertain intentions. "Early Warning Systems | Jaffa Factory: Mad Jeff #47" gets the radar online. That newest installment had the strongest first-day audience of the three and is attracting the most daily views now.
Subscribers held steady at 1.7 million, while daily views are a little above Duncan's usual level. Nearby Minecraft channels have varied rhythms: fWhip is drawing more daily views than usual, while xisumavoid is having a quieter spell. For Duncan, the week's clearest progression is inside Mad Jeff itself: a base with more firepower, followed by a way to see trouble coming.
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What viewers say
I love how borked everything is. The door on the new tank crushes everyone inside by default, opens normally on shift click. The mechanical crafter that needs a momentary input is controlled by a lever, not a button. The old camel van is just on it's side around the back. There's just a metre cubed of bread on the floor.
@dafoexSee it on YouTubeBone Train was a thing of beauty.
@tenebraebrSee it on YouTubeCould you have infinite lava sources auto filling turrets around the base?
@TheDoyshSee it on YouTube
5 more comments
duncan has the chance for fire truck redemption with this
@user-co2ps4yo7kSee it on YouTubeSeems like the chemturret follows your vision.
Looks around in the directions you do, though when controlling, you want to be facing the same way so it follows along properly.@EeraschyyrSee it on YouTubei think the Heavy Flamer would work better up front, hooked into that drive shaft instead of having the front be covered with the spikes
also allows the flamer to be at mob height instead of the flames coming over the view port@Sawtooth44See it on YouTubeAfter Duncan testing the flamethrower on the base, I am not sure Mad Jeff can outmad him.
@noob_senpaiSee it on YouTubeDuncan's tank break all the laws, tonight on Robot Wars!
@zoyonaraSee it on YouTube
Public comments from the video's page on YouTube
The videos drawing views on Duncan right now
- Channel
- Duncan
- Subscribers
- 1,700,000
- Channel views, last 7 days
- 244,989
- Videos published this week
- 3
- Video published
- October 13, 2026
- Video views so far
- 29,275
- Views on its first day
- 19,492
The numbers
Here is Duncan's week in views and subscribers.
💡 Test your knowledge
What does the crew get working in "Early Warning Systems"?
The episode's description announces that the crew's radar system is online.




