I wanted to show off my Warhammer 40k Fallout 4 NCR-themed Adeptus Mechanicus army, and I thought, what better place to reveal the finished product than on Spikey Bits!
Alright, let’s dig into this Warhammer 40k Fallout NCR-themed Adeptus Mechanicus build! When I first came up with this crossover idea, I knew it was a big ask, but hey, who can resist blending the ominous aura of Warhammer 40k with the gritty, post-apocalyptic vibe of Fallout?
This project has been a ride, and I’m thrilled to finally share it here on Spikey Bits.
FALLOUT Warhammer 40k Army: New California Republic Ad Mech
So, what sparked this madness? Well, it all started when I got my hands on some Skitarii models. Something about them screamed “NCR Rangers” from Fallout: New Vegas—you know, the guys who patrol the wasteland with their distinctive trench coats and cowboy hats, ready to tackle anything.
The New California Republic Ad Mech Army
I wanted my Ad Mech army to channel that rough-and-tumble look, so I set out to build an army that felt like a true Fallout 4 meets Warhammer 40k mashup. Little did I know, it would lead me down a rabbit hole of head swaps, custom transfers, and even a little urban wasteland scenery crafting.
I tracked down some heads that fit the theme using a mixture of Pig Iron Productions and Dreamforge stormtroopers.
First up, the head-swapping saga. Finding heads that suited both the militaristic NCR and the technological vibe of the Adeptus Mechanicus wasn’t exactly a walk in the park. After some hunting, I found a sweet combo using heads from Pig Iron Productions and Dreamforge Stormtroopers.
These gave my Skitarii the stoic NCR vibe without sacrificing that “high-tech desert ranger” feel. And yes, I’ll admit, I got a little carried away testing different looks. It’s amazing how one small change can transform the whole feel of a model.
Now, let’s talk about the stars of the show: the Dust Tactics transfers. Finding decals that fit this Fallout 4 x Warhammer 40k vision was like unearthing buried treasure. These transfers turned out to be the perfect addition for giving my Ad Mech units that New California Republic touch.
Slapping the NCR star on those shoulder pads felt oddly satisfying—like a badge of honor for these Mechanicus warriors in a world that’s seen better days.
One thing you won’t see here? Liberty Prime. Yes, I know—how can you do a Fallout-themed army without giving a nod to everyone’s favorite giant robot patriot? Here’s the thing: Liberty Prime is basically the Brotherhood of Steel’s golden boy, and that’s a whole different vibe from the NCR.
Plus, finding the right model to do Prime justice was tougher than I thought. So instead, I leaned hard into the NCR look, making sure that every detail, from the headgear to the paint scheme, screams Fallout without veering into Brotherhood territory.
Trust me, I’ll keep Liberty Prime on my list of future projects… if I ever find the perfect base model.
Speaking of custom looks, let’s dive into the Kataphrons. I wanted these guys to lean more “industrial robot” and less “cyborg soldier,” so I gave them another head swap courtesy of Pig Iron Productions. The result? Sleek, imposing warriors who look ready to take on whatever the wasteland throws at them.
The streamlined robot look just feels right for an NCR force that relies on rugged machinery and advanced tech to hold their own.
Now, here’s where it all comes together: the Skitarii Vanguard squads. These guys are the real heroes of this project, standing tall on custom urban wasteland bases that I made following my own tutorial.
I tried to channel that cracked concrete, crumbling asphalt, the post-nuke vibe we know and love from Fallout, and make it feel lived-in like these guys have been patrolling this bleak landscape forever.
Toss in a little wasteland grime and a few NCR-inspired details, and suddenly, they’re not just Skitarii—they’re Fallout 4 NCR rangers with a Warhammer twist. A close-up of one of the Skitarii Vanguard squads. As you can see, this is where I tried to recreate the look of the NCR Ranger using my urban wasteland bases tutorial.
To top it off, I wanted the whole army to give off this “makeshift battalion” vibe. You can imagine these units scouring the Mojave, running into super mutants, hostile factions, and who knows what else. And thanks to those unique heads and NCR decals, these models have their own rugged personality—they’re definitely Warhammer 40k but with that unmistakable Fallout vibe.
Looking back, bringing this army to life took more time than I initially thought (okay, way more time), but seeing it all come together? Totally worth it. Each figure, each tiny decal, every bit of weathering on the armor—it all adds up to a tribute to two of my favorite universes.
There’s just something special about looking at your army and feeling that it represents something uniquely yours, not just the lore of one game or the look of another.
Final Thoughts On FALLOUT 4 Warhammer 40k: New California Republic Ad Mech Army
So, what’s next? While I’m not making any promises, I’ve got some ideas percolating for other Fallout Warhammer mashups. Imagine a Brotherhood of Steel-themed Space Marine army or maybe some Vault Dweller-inspired Astra Militarum troops! And who knows? Maybe Liberty Prime will make a cameo someday—once I figure out how to do him justice.
In the end, creating this NCR-inspired Adeptus Mechanicus army was all about the joy of kitbashing, experimenting, and just plain having fun with my minis. If you’re thinking of blending two worlds you love, my advice is: go for it. It doesn’t have to be perfect, and it definitely doesn’t need to follow all the “rules.”
Just grab some paints, a couple of spare heads, maybe a transfer or two, and see where the journey takes you. Thank you for joining me on this journey, and I look forward to sharing more of my future projects with you.
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What do you think about this Warhammer 40k and Fallout mashup?
