Could the UNSC survive 40K? - Warhammer/Halo 

I've had quite a few comments asking me to make a video on the Covenant and if they can survive... Ask and you shall receive. But if you also have any other ideas that you'd like me to cover with a short story on feel free to give me suggestions!

UNSC: We have Warp-free FTL Cawl and Guilliman in unison, with the Emperor's psychic voice in the background: GIVE THEM ALL THE FUCKING FORGE WORLDS.

With how active the Emperor has become, I feel the UNSC's arrival to earth likely would have gone differently. The Emperor with his foresight likely would've known of their coming, or have been made instantly aware of it upon their arrival. While it's difficult to know what the response would be, I'd think he'd want to know more above all else. Either the Imperium's attack would be called off or it wouldn't have happened. Some sort of tense agreement would be reached to have a representative sent down or up. Due to the delicate nature of the situation, only a Custodes guided by the Emperor could likely be trusted even then I could see him doing that weird custodes possession thing he can do in order to ensure an actual discussion can be had. The Emperor would quickly learn the truth one way or another; while human they are from another universe or timeline- What matters most is on all accounts they are from somewhere Chaos does not exist. Upon that realization, they immediately become invaluable just by merit of existing. From that point on, there are many ways it could go, but I think the Emperor's skills (even eroded from sitting on the throne) would largely defuse any immediate conflict unless he could see that the optimal path forward was for the Astartes/Custodes to seize the ship and all it's crew. One way or another there'd be an exchange of information, the Emperor would see their value and mutual cause and either seek to use their knowledge to fix his own universe or some method of bringing humanity or a good chunk of it into the Halo Universe (All he wants is for Humans to be free of Chaos and on top). It's important to remember that if the AI are able to even consider they're in a different universe, the Emperor would probably be able to just tell they're from a different one.

NOW THAT IS HOW YOU HANDLE SPARTAN V SPACE MARINE, THAT WAS AWESEOMMMMEEEE

The UNSC couldn't even survive in the Halo Universe without a godsend from a long dead alien race

Next do one where an Astartes ship pops up in the Halo Universe

Not for long.......humanity probably need to be all Spartans.

UNSC: is sad and hopeless while under the tau. Lion El'Jonson and the Risen in their kinda nobel bright proterorit: NOW THIS LOOKS LIKE A JOB FOR ME!

This is great. Imagine the Tau and the UNSC working together. Spartans in battle suits and Tau ships with slipspace tech would be amazing 🤌🏽

I think ppl forget that there are a lot of normal human soldiers in 40k Gaunt's Ghosts come to mind

I have a feeling they could get along with the imperium, they are far better at reading the room than anyone in 40k ever will be

Seemed more of a unsc fleet on 40k. Would be interesting to see how unsc gaining a pathway to the 40k universe would play out, especially at different points in time for the unsc. Just before contact at harvest, or before the fall of reach, shortly after the end of halo 3. Each time period brings different tech and logistic situations for the unsc.

Now do one where the UNSC runs into the Drukhari. I want to hear the Spartan's thoughts as he's made into furniture.

Great story! I saw PancreasNoWork's video on the UNSC in 40k a few months back. This story matches up closely with one of his scenerios where the UNSC are bombarded by threats before they can get a foothold on any planets. I gotta agree with Pancreas that if the UNSC were to fortify themselves in at least a couple systems and get some good industry going under the radar, then they'd be a formidable force in the 40k galaxy. It all really depends on the circumstances they enter the setting under.

Only if they strike a truce with one of the larger faction. The zelots in the imperium would instantly kill them the eldar if in a good mood might spare them the tau would accept and the chaos would never get on their best bet is with the tau and fly under the radar till they can get enough manpower and resources to not get smited by the imperium

A Tau and UNSC alliance is a frightening idea

Humanity barely survived the covenant, I doubt they’d survive the Orks

I honestly cringe whenever ppl try to compare spartans to space marines as they are from both different universes, timelines, and both have different roles in warfare. But you did an amazing job showing how while spartans can be deadly, astartes can also be deadlier. You perfectly set them up as simply both strong units but 1 can survive longer. Keep up the good work!

Kind off, as a side character perhaps, but in all honesty no not really, again if it’s the entire UNSC, then they’d be in a similar situation as the tau but much weaker, since they don’t all use gundams, but what the UNSC lacks in overlapping or overwhelming power, they make up for it in their flexibility and adaptability, and again considering that most planets in the UNSC have an orbital defense system as well as a stable FTL system along with AI, does make them a dangerous force to be reckoned with, but again, if we’re going with pre covenant war UNSC, the fact that the UNSC’s ships lacks any form of shields or shielding and relies solely on their point defenses and sheer weight of armor, isn’t going to be all that effective when you consider that an imperial lance turret is the equivalent of a covenant glassing laser, where it’s been clearly shown that a single shot from a covenant glassing beam is enough to cut a UNSC autumn class heavy cruiser in half and a macro cannon would basically be akin to the shots fired by four MAC cannons fired from an ODP, again in a straight up fight, the UNSC isn’t going to win, again considering that the standard ma5c fires the equivalent of a modern 7.62 AP round which yes is okay at killing something more human sized, is completely and utterly pointless or useless when you’re dealing with say a hoard of orks or a swarm of Tyranids in which even killing something like an elite usually requires the user to dump half a magazine into them before they’re killed and the best comparison in the halo universe would be akin to an army of brutes mixed with the durability of a hunter, again even lasbolts which would be equivalent to the DMR from halo reach requires something akin to half a power pack just to drop a single ork, and again that’s not including things like say for example armor which an ork typically wears, there’s a reason why in 40K there are things like castles or fortresses or giant defensive structure is because, to simply put it overwhelming firepower is utterly and completely useless and irrelevant if the enemy has already closed into melee range in which outside of a tau or even an eldar, everything else is far larger and stronger than your average space marines to the point where even space marines tend to have trouble when dealing with orks due to how resilient they are to damage as well as to how physically strong they are, whilst again the UNSC has access to better and cleaner tech than that of the imperium, again even something as silly s Their main battle tanks would be easily destroyed due to the fact that whilst a high velocity 90mm cannon might be enough to injure a swarmlord, that’s about it, unless you’re talking about a grizzly then perhaps it could take on a tyrant guard but even then, what about the other millions of hormagaunts and other smaller Tyranid lifeforms charging the tank, since outside of the likelihood that the scorpion is given a coaxial chain gun in its turret, the only other option are the right guys with rifles sitting on the side skirts or the poor sod in the heavy machine turret getting ripped to shreds or blown up with the vehicle, again whilst the halo warthog is cool, it’s exposed compartments and lack of any actual protection is more likely to result in the occupants being eaten alive by the living ammunition of the tyranids, shot or blown to pieces by the orks or imperium, again imagine if reach was forced to undergo say an ork invasion kinda like the third war for Armageddon or an invasion by the tyranids, not to mention the corrupting influences of chaos or the taint spread by genestealer who can pass as a human unless they’re biologically scanned and checked, then entire genestealer cults would start popping up everywhere but even then there would still be the massive or utter lack of resources and available ammunition,

Can you make a series about this but with the whole universe because this would be like that Star wars vs 40k one

Honestly, im just imagining the UNSC engineers arguing incessantly with the mechanicums adepts about how to turn on a microwave 😂

Yes, if the Tau can. So can the UNSC.

Absolutely loved this, more UNSC stories involving other the 40K universe would be most welcome. Thanks for this

I would think it'd be more considered a lost era human coming back home. 🤔 ehile they wouldn't hesitate to destroy them but they would more likely open up negotiations

The Angels of Death against the Deamons of the UNSC… this battle will e glorious.

Excellently done dude can't wait for more

Dude 🔥 🔥. Bravo 👏. Great Video Hope to Watch More in the Future.

If the Imperium wasnt so trigger happy they could have opened a dialogue with the splinter fleet of the UNSC. There has to be someone smart enough, maybe a tech-priest or a well-learned captain, to realize that the UNSC were human. This would allow the splinter fleet to explain why they have AI and that they are more confused than the imperials are. UNSC would eventually explain that they thought that they were orbiting Earth, rather than "Holy Terra", they have non-warp ftl drives that are way more efficient than warp drives (cue Mechanicus oiling their collective robes), and they also have their own breed of bio-enhanced super soldiers which are more close to Astartes than the Imperium realizes (maybe even use the UNSCs data to make Spartans for the Millitarum, though thats doubtful cause honestly I love Spartans, but the Astartes are basically Spartans but better). The Imperium would eventually welcome the UNSC fleet and share technology with them as well as explaining on their end what they're all about (though I doubt the UNSC personnel would be down with the whole theocracy thing). Gulliman (assuming this takes place when he is now Lord Commander) would be facinated with the UNSC and basically grant them immunity; gicing them intel, arms, training, a contingent of Primaris to assist the Spartans, and maybe even have the Mechanicus retrofit their fleet to some degree with newer and shiner toys (guns, like really big fucking guns). At some point, the splinter fleet would find themselves at odds with the home fleet they separated from. Now THAT is a battle I would love to speculate about! Two sides that came from the same place, but sheltered in different forms and bolstered by different galactic powers.

T'au Spartans sounds sick, and would be a really neat conversion. I know what to do with a few Spartans from the Halo: Flashpoint game coming out later this year o7

Wow this was really good, I'm glad that you are continuing the crossovers. I was looking forward to seeing the entire UNSC in 40K maybe just before the war to help with inconsistencies but I understand that would probably be a lot longer story and I feel like you provided an accurate comparison when it comes to strength between the factions and that ending was the most likely besides the UNSC fleet getting completely destroyed. 2 things I will say though is that I'm pretty sure the UNSC only blows up their ship reactors and does not do a operation upper cut every time they initiate the Cole protocols but I guess that captain wanted to be extra sure lmao. Also with the fight between the spartan and the astartes I think it would of been cool if the spartan used the fail safe detonation system and took the astartes out with it. In regards to suggestions the obvious big hitters besides the covenant is ancient humanity/ancestors, the forerunners and the flood and/or the precursors since spoiler: Epitaph confirmed they are the same thing just at different levels of complexity. However if you want to do smaller inclusions like with this then perhaps you could do the banished or the didacts approach while was on its way to Earth. You could even do the UNSC Infinity when it made that random slipspace jump but it probably wouldn't be much different from this despite being way way way stronger its just not enough to start a interdependent faction, unless it becomes the unsc version of a craftworld which I guess was its intended purpose in lore. Anyways, great video I hope you continue this series.

I'm 10 minutes in and I'm like "Average Spirit of fire side adventure" 😂

goddam ur a great storyteller. awesome vid

I did a timeline video which included the halo universe, I basically think of it as dark age of technology era

This was so enjoyable you should do more of this :D

This is really well written.

Bro don’t let this series finish stretch it out as long as you can 👌

The UNSC could make for a solid guardsman regiment. Bear in mind they are known for having very advanced training as the UNSC beat the Covenant on most ground engagements, only losing to orbital bombardment. Spartans could serve as an elite spec ops force capable of infiltration missions and, assignments making Space Marine deployment less neccesary in certain scenarios. Cortana could probably be passed off as a machine spirit, considering she was created using human DNA and is technically not fully inorganic. The Imperium would simply need to augment them with some better technology for combat. Slip space is far faster than Warp travel and far more safe. This could lead to the imperium no longer relying on warp travel if the UNSC teams up with the mechanicus and mass produces the slip space drives. The large increase in resources and planets would allow for much greater fielding and creations of Spartans of various levels of design(Spartan 2s, and Spartan 3s would be created in mass due to hive worlds having billions of potential candidates. Spartan 4 augments could also help with increasing the effectiveness of adult Guardsman commisars, officers, and tempestus scions). ONI definitely may find themselves in trouble if they try to reverse engineer xeno technology but considering the Mechanicus is sketchy at times, they may be able to hide this. I TLDR: Overall I think the UNSC could function quite well as an Auxillary faction and/or Guardsman regiment for the Imperium. As a bonus combat shielding, and less invasion augmentations may be able to limit casualties and increase effectiveness of human units. (if properly tuned for the scale of 40k weapons).

damn that was awesome. can you do more of these videos pls ?

Pancreas no work actually did a whole series on this....he made some excellent points.

Not even going to lie, the spartans fit pretty fucking good into 40k universe. “SIR WE’RE OUT OF AMMO” “Then we’ll play their game"

great video, can you do one with the covenant?

Awesome video, love the story

This is an amazing story you've written.

Considering what the UNSC was able to achieve until now, it will probably fix for good the galaxy of 40k. 😤

How do you think this would play out? 👀

great video, loved how you did justice for both the spartan and space marine. only critique is even if the Spartan's body was paralyzed the armor would still move thanks to the neural bridge that links directly between the spartan's brain and armor and though not used often/at all in the lore a spartan can remove the safety limiters on their micro-fusion reactor to vaporize anything and everything in a roughly 20 meter radius with just a thought. but still a great fight

Dude that was peobably the best vs the Imperium video i have ever see. You defenitely have done youre homework. The Emperors Most Holy Inquisition is very veeeeeery happy 😂😂😂

Considering humanity has access to forerunner tech or whatever, whilst the current 40k is in a technical technological dark ages, it’d be pretty short lived

The UNC would stand no chance against a legion of astartes and psykers let alone a legion of knights or larger.

HOLY SHIT MASTERPIECE ❤

That was great!

Yeahhh... Idk man. Your Spartan vs Space marine scene was complete fanservice... I get the emperor made the armor and everything but these are future Tech pistols too and you described a point blank shot to a vulnerable area.

The Spartans might have a small chance for a day or 2. but the UNSC as a whole have no chance in hell, military power is not large enough to start with

Awesome job! 👍🏽🙌🏽

Yeah it can and it will, slipspace is not the warp after all.

this is interesting but I think you forgot how big Imperial Space is and how fast UNSC ships are. the imperial can try to chase but with UNSC AI and slipspace, they can outrun all of their attempts. the imperial is also too big, and due to a poor filing system, they lost entire worlds. the UNSC can just move away from segmental terra and be fine, they are systems where the imperial shows up every 100 years or so. this makes for a far less interesting story compared to the one you told but one more likely to be. lastly, if you want the story to feel more organic I would recommend using the infinity next time. the original purpose of the Infinity was to be part of a mobile fleet to save humanity from extinction. just say Halo 3 didn`t happen and the humanity in Halo got as many people as they could on ships but were attacked by the covenant before they were ready. they activated the infinity forerunner slip space before it was properly installed and something went wrong. they were now in the 40k galaxy with most of their ships holding civilian populations in a space-fearing fleet. almost forgot, call it heresy but depending on the chapter the Spartans will destroy the space marines. most space marines follow a warrior code and as such leave themselves exposed. and while they are stronger than Spartans, Spartans are better-trained combatants. Spartans without sword training have matched elite sword masters.

This was incredibly fun to listen to. I would like to see something similar but with the Infinity fleet of post war tech.

The UNSC wouldn't fall like that. They'dve successfully set up elsewhere and reverse engineered technology.

Can the tau survive in the halo universe

Great video

Next video. Spacegodzilla in the 40k universe.

You undersold the spartans but other than that i liked it

hold up a las gun staggers them? spartans fight the covenant who use straight up plasma rounds

Ha no they barely survived the covanent and they would likely only survive in 40k so the UNSC? Yea no they will be wiped out. We have seen similar battles in the HH series of what the battle would be like.

Yes it could fight them, as the imperium is streached thin and probably wouldn't pay too much mind as they bigger fish to fry. Safe slip space is an advantage and their tech leves are about tau level. The imperium could destroy them and the tao but dont because its not worth diverting enough resources

Please do part 2

I'm 5 minutes in and I'm hooked😶

This is pretty decent. But the Soace Marine fight was… meh. Thing is that Spartans are equivalent to superior to space marines in almost every way. That space marines punch wouldn’t have been any worse than getting hit by another Spartan, hell the shield should have stopped it from hurting him. Scorpion Tanks have FALLEN ON Spartans only to walk away after. They don’t have redundant organs, they just have super ones. With their armor being leagues above what space marines have including nano machine self repair. And the thing with the shields? UNSC Autocannons are described as “harmlessly smattering against them” in several books. Hell the magnum would have worked decently, it’s an armor penetrating high explosive projectile, being used against a ceramic armor. Each shot would have blown chunks out of the space marines armor while the space marine could shoot the Spartan, the Spartan could retreat, and play a game of cat and mouse the marine has very little chance of winning in large part because he doesn’t have a shield!

19:15 a Spartan would easily be able to lift a space marine with differing levels of struggle like a Spartan 2 would have no issue rag dolling a space marine though a Spartan 3 would struggle but would be able to do it though not rag dolling the space marine so it must be a Spartan 4

Atriox vs the angels of death would be an insane fight

6:44 I like this so far! Grounded and logical.

To be far 40k people don’t survive the 40k universe

Honestly, the Spartans and Astartes were done perfectly, well done

More please :)

John? Yeah cause he’s lucky. Everybody else? Fuck no lol

chief fell in love with an ai he will fall to chaos 100%

Very well written

I'm also heard that Terra was moved from Earth's initial position at some point during the Age of Technology and with all the Warp Shenanigans and tens of thousands of years of time passed there's no chance that Splipspace Topography wasn't altered if not completely thrown out of wack from what the UNSC knows and the Ships sent to earth wouldn't have ended anywhere near where they thought Earth Was.

Super amazing video! Could you do one where instead of them only a fleet being put into the 40K universe it’s the entire unsc planets and systems? And it’s set to after the covenant and they just get discovers by 40K?

Nice to see you gave the unsc a modicum of a chance, with their only real limiting fact being their woefully small size in comparison to everything else. I even enjoyed the Astartes vs Spartan fight and how it did make sense. They're roughly equal to each other, but there's no way the Spartan could know just how tanky Astartes could be.

Welter weight boxer champion vs Heavy weight champion who’s over 8 feet

Chief: *tosses a jar with a infection form in it onto a random forge world.* "we're leaving a FTL ship in that cave. GG? Do ur Thang floodiboo" Gg

I don’t know what I expected.

That Spartans death genuinely made me mad

I think a more interesting scenario would involve the UNSC being pulled into the 40k verse by some sort of xeno tech that happened to be activated by a Rogue Trader. He is immediately intrigued and starts to talk to them. He is his own master and though he serves the aimperium his curioisity and seeing the potential in selling "alien" human tech is too strong to ignore and he keeps them around. UNSC learn all about the Imperium and try to lay low out of their way while they gather info from scouting and small incursions

an interesting thought experiment, me likey. imma honor him on his throne on terra and spark up the trusty hooka and then listen very intensely. 1:45 in and holy hell you narrate compelling!

this is real good ya unsc would freak out when oooh theres a hell? there whole world views would go up in air

This question comes down to how quickly the UNSC can reverse engineer the weapons, hardware, and mechanics of other factions’ technologies. And if that’s the case, the UNSC could do well enough to keep itself afloat, and find themselves in a similar situation as the Tau Empire. They wouldn’t necessarily have the means to conquer the galaxy, but they can hold the line when protecting their own territory.

UNSC teamed up with Starfleet Command and the Tau... well they might be able to hold a sector. Maybe.

you need to make a part 2 of this but without the part of unsc being a tau pet state

I could see them being a soft target for the dark eldar. They would just wipe out the entire group

I've never heard of the Astra Militarum running from an enemy in fear.

What if the covenant and unsc joined forces in the 40k universe as they’d need each other to survive

The UNSCs plot armor is about as thick as the imperium

I think Spartans would fill a squad based niche just above Sisters of Battle in power per unit/squad effectiveness. They'd do fine, but they'd go extinct in a very short time due to their low numbers and difficulty making more. As soon as the Imps discover the Spartan's reliance on AI, though, they'd probably be forced to surrender the tech or die. Chaos machine spirits corrupting advanced AI would be immensely dangerous.

they'll survive, they won't thrive but they will survive

While I do not know much about war hammer 40k, and most of my halo knowledge comes from the books. I believe that the Spartans energy shields should have held out better than what is described in this video. From my knowledge, war hammer 40k’s primary weapon type is kinetic, which the Mjolnir armor energy shields should have little problem dealing with because it was effective against Covenant plasma fire. Which is designed to destroy energy shields.

I can see it be better for them if unsc and covenants work together

The Imperium could theoretically destroy them. But it would take so much ressources that they would likely not do it

Great video. I’m honestly agree with the outcome. I’m also on with how the fight between the spartan and the astartes was handled. I agree that Spartans have a chance to stand up to the astartes but I believe that the spartan would have won the fight if they had a AI to help them analyze the astartes that way they would have ended the astartes before the astartes recovered from that wound. And the part about Tau intentionally withholding information from the UNSC is a nice touch.