The heavy hitters collide in an all out war. All eras and factions from each multiverse are completely united against the other multiverses. Rules: No gods, they are busy. Anyone who attempts time travel will be eaten by a goat the size of a galaxy.
Anubis' army first launch a massive assault on the dominion. He is backed by Apophis. Meanwhile the Seperatist General Grievous commands the attack on the Klingons from the Malevolence. Followed by all the ships the seperatists and rebel alliance/new republic/galactic alliance have to offer.
"All the Qs?"All godly weapons and beings are busy, planet blower uppers and system blower uppers don't count as godly though. Like the sun crusher or the eclipse.
So does grievouses fleet crush the klingons? They rendevou with the republic and imperial fleet lead by palpatine and the eclipse *pretty much every ship and man from the movie era and the post movie era, pre movie people are guarding the star wars galaxy*
"Star Wars Universe."I don't know, the star wars universe has the third fastest method of travel. Moving anywhere from millions to billions of times faster than light. But in fleet size it's rivaled by WH40k, and possibly stargate. Star Trek all together would have ten thousand-ten million large ships, give or take. Star wars would have 10 milliard-10 billion, WH40k would have milliards-billions, stargate I'm not so sure. Note, I only count capital ships, I exclude everything smaller than a destroyer in large scale combat scaling. That means frigates and smaller. I also discount civillian vessels and unarmed ships of any sort.
Ground combat belongs to WH40k and Star wars completely. Star trek is pitiful on the ground, lacking Armored units, artillery larger than mortars, Sea based navies *star wars owns the sea*, Anti-armor, APCs, anti-aircraft weaponary, or pretty much everything important for a good ground force. Star gate has Anubis's army of liquid metal monstrosities.
Superweapons belongs to star wars. No questions asked.
Numbers are completely in the favor of WH40k, on any given day 200 billion people die for the imperial guard alone. The Star wars galaxy has 200 quadrillion-20 Quintillion birth born sentients, roughly a 100-100000 times that in Clone soldiers, many thousands-billions times that in droids . The WH40k galaxy has quintillions of birth born soldiers for the imperial guard alone. The orks have dectilliards of boyz at their disposal at the very least. Every Tyranid hive ship has hundreds of billions of tyranids inside, and there are hundreds of billions of tyranid ships in every small splinter fragment fleet at the most conservative of estamites. The Necrons have numbers in the Nonatilliards for a conservative estamite. Even the Eldar have numbers in the quadrillions. The Chaos Daemons and marines are in numbers that simply can't be measured. Though they are smaller in number than the tyranids.
WH40k is disadvantaged by the fact that their warp drive is only as fast as the Borg's transconduit drives, though it does not rely on a network, every time they enter they risk getting killed dead by daemons and worse. And due to the fact that time flows in a extremely erratic fashion for warp. However the Necrons have the fastest way of traveling in sci-fi short of the infinite improbabillity drive, the infinite acceleration drive, it turns off inertia allowing them to achieve infinite speeds, so they can go anywhere in a instant. The Necrons probably would share their technology with their allies.
The Star trek multiverse must rely on skill, they are outnumbered and outgunned by their enemies, so they must rely on surprise attacks, such as using their captial ships to shoot down enemy carrier borne craft and using their fighters to attack the capital ships, and attempt to avoid ground combat as much as possible. *all measurements are in long scale*
I agree with most of it.
Stargate probably has the lowest ship count. of all the races, but i think they have the most powerful ships. Ancient Aurora class and city ships have no equal. First, they have shields which do not lose integrity while power is maintained, meaning that they are virtually indestructible while so long as they have enogh power to fuel them. A single Aurora class is able to survive for days under full bombardment from several wraith hive ships. Then they have drone weapons, which can pass through any kind of shields and will litterally drill through their target untill they find a suitable place to detonate, or if not necessary, simply make enough holes and let vacuum take care of the rest. I think that a big enough number of them, like all the ones launched from antarctica outpost, could even take out Star Wars super ships like Executor in minutes.
The asgard also have the second fastest transportation method, a hyperdrive which can cross galaxies in minutes, and plasma beam weapons, which are of similar destructive power as the drones.
I agree with ground combat assesment. Anubis has cull warriors which are imune to energy weapons, but that wouldn't be a problem for wh40k.
I agree with numbers
I agree with warp drive part.
And star trek are completely outnumbered and outgunned here.
Star trek is proven to be hopeless in ground combat, even the klingons who are probably the best at ground combat star trek has to offer, would be far below the worst that star wars has to offer. And picard's federation would be doomed against the brutality of the Wh40k multiverse. Though this has all the forces from every hour of each multiverse's existence the numbers would be multiplied to a enormous extent, though I only will count the known parts of the multiverses that have been covered with at least a scentence's worth of material. Which would mean there would be multiple copies of every character, ship, and object, and location. This is mainly for a truly epic battle. Though the fact that star trek at large has been space and star faring for only a 1,000 years for all the current races with the possible exceptions of the Borg and Species 8472, and some other races, this may screw it over.
Though it gives it some hope. The Judge of the War are the Great old ones and the Outer Gods, who have created this conflict for the Lulz. The winner is determined by who surrenders last, as the number of men are infinite, though the number of men that are around at any one time are quite finite, though are absolutely gargantuan.
The Executor and his various brother ships may go down, but they are the fifth deadliest Star Dreadnoughts *note as I am french I refer to ships and vehicles as males*, after the
4. Mon Cal Viscout class Star Defender/Dreadnought due to superior mon cal engineering which allows more fighters, thicker, better crafted, and more advanced material wise armor, better ray and particle shields, more weaponary, and more powerful ones, vastly more fighters, more prefab bases *note the executor is modified a bit, it has an extra prefab base at nothing else's expense*, better point defense weapons, faster turning turrets, better scanners, better engines, more effeciant reactors, faster sublight speeds, a faster hyperdrive, better posistioned turrets & guns even though star destroyers already had extremely well placed guns, better targeting computers, less organic and droid crew requirements, more cargo capacity, better communications, a more effective command and control capacity, and more ground forces, even though they are 3.8 kilometers shorter, they are a good deal wider and taller. And a larger amount of troops for boarding, security, and ground attacks.
3. the new ones introduced by the legacy era empire due to over a 130 years worth of technological advancements so effectively it's better in every way.
2. the Malevolence class as it is a good deal larger, as it seems to be roughly 33 km in length, 8-14 km in width *one measurement without the super ion cannons and one with*, and 5-10km in height, and probably is much more massive. While it was created nearly 22 years before the Executor, the fact that it only needs 2 ion cannons, besides a few dozen for some things too small for the main cannons so roughly 100 or so quad light ion cannons should do the trick, and about 300 quad superlight ion cannons for point defense, leaves it much more space for Turbolasers, laser cannons, composite beam cannons, blaster cannons, repeating blasters, auto-blasters, auto-turrets, rail cannons, mortars, anti-fighter missile/torpedo tubes/launchers, anti-capital ship and planetary assault missile/torpedo tubes/launchers and everything else, also it carries a huge amount of fighters and can easily ignore fire power in the hundreds of tetratons, the only things that can destroy it are superluminal impacts with another body when shields are down or a fully powered super laser, galaxy gun, or extreme proximity to a supernova. It has at least 15,000 fighters not including interceptors, bombers, assault craft, and gun ships, and is so massive that it's gravity field allows full holographic communications. Millions of battle droids and thousands of vehicles for all purposes.
1. The eclipse class star dreadnaughts at 16-35 km long, as it has a super laser, 600 heavy turbo laser batteries of 4 octuple barrelled barberrete cannons, 75 heavy ion cannon batteries of 4 octuple barrelled barberrete cannons, 600 heavy laser cannon batteries of 12 octuple barrelled cannons each, 600 heavy blaster cannon batteries of 36 octuple barrelled cannons each, 100 heavy tractor beam projectors, 200 medium tractor beam projectors, 400 light tractor beam projectors, about 600 batteriesassault missile/torpedo tubes/launchers of 4 octuple barrelled launchers each, and about 1200 tie fighters, 600 tie interceptors, 300 tie hunters, 150 tie defenders, 96 tie bombers, 48 tie indercitors, 24 tie heavy indercitors, 12 scimitar assault bombers, 250 sentinel class transports, 100 lambada class shuttles, 150 theta class landing barges, 600 tie/rc fighters, 600 tie/sa starfighters, 300 tie avengers, 450 tie advanced x7s, 100 At-Ats mk II's *equiped with 2 light turbolasers, 2 heavy laser cannons, and 2 medium blaster cannons each, all on the head* , 300 at-sts, 900 at-pts, over 150,000 storm troopers, 5 prefab bases, 10 gravity well projectors *to prevent any enemy hyperspace jumps*, 708,470 crew members, 4,175 gunners, ten years of consumables, a class 2 hyperdrive and a back up class 6 hyperdrive, 9 or 13 blue engines that provide a maximum acceleration of 940gs at sublighf speed, and with shielding and armor so thick it can ram nearly anything, note the superlaser can destroy executor class vessels in one shot, and has 2/3s the power of the central component beam for the 2nd death star, or the power of one normal component beam for the death stars, enough fire power to instantly shear off the crust of a planet and take off 45/50ths of the mantle. So 3 shots are needed to destroy a planet, however it would be with merely 1/3 the power of the 2nd death star, however it has a recharge time of one minute and is accurate enough to shoot at roughly corvette sized objects.
Impressive ships, but a couple of Auroras would bring them down easily. I think Eclipse is the only ship capable of going one on one with stargate uber-ships., because of its superlaser which probably could overwhelm Ancient shields.
Now with that said, Stargate still loses this because they're vastly outnumbered. This will ultimately fall down to a contest between WH40K and Star Wars baecuse they both have great quantity and relatively advanced technology compared to others.
What about the malevolence and it's "Lulz we can permanently rob an entire planet of all it's electronics in one shot" cannons? As unlike most Ion cannons, the Malevolence's Ion cannons permanently shut off Electronics, at low power they render a fleet of 12 star destroyers and all onboard vehicles, troopers, and starships as well as any escorts and escortees following them without power permanently, and can only be restored for small scale ships by major rewiring, and not at all for large vessels, and at full power would probably leave an area the size of a solar system without any form of electricity, electricity depandant technology, most alternatives to electricity short of the force, fry the magnetosphere's of everything inside, vaporize the ozone layers, and cause severe migrains, as all that ionic energy, it has some other stuff would mess with your brain waves.
However a purely ionic cannon would work like it does in C&C, as a giant charged particle cannon, that if you use a few smaller beams to ionize the air for 30 seconds, with the added bonus of vaporizing anything caught by the tributary beams as well as push them down extremely violently due to high kinetic energy levels, will ionize the air to the point that another ion beam would cause an explosion on par with an Rod's From God sattelite with rods about the same size as the satellite from 100 km in orbit, or enough to level an entire county roughly the size of fairfax and all sorrounding counties in one hit with no survivors and cause %90 fatalities in all the counties adjacent to those counties and so forth with a 31 meter tall satellite *30 of it being in the cannon 1 in the scanners* with 8 surrounding tributary beam emitters each 5 meters wide around a 15 meter wide beam emitter for the detonation beam. And a 5 meter in diameter omnispectral telescope *all parts of the electromagnetic spectrum* It can disable electronics as it has a huge amount of electricity, and create thunder storms as the positively/negatively charged particles interfere with the clouds making them create lightning and release their rain.
Rather star wars must have added some purely EMP element to it, however as there is no air in space, the ionization effect can't happen so no explosion. But it can still cause scorches in paint. However for most of the ion cannons they are almost completely EMP, as they are a bolt instead of a beam.
Wow, I didn't read the complete post on Malevolence and i clearly missed a lot. But I do know that Ancient technology is impervious to EMP. This is porbably because it's not based on electricity. but rather energy being conducted by crystals or something like that. So it would not shut it down. as for the structural damage and effect on pople inside, your guess is as good as mine.
"Wow, I didn't read the complete post on Malevolence and i clearly missed a lot. But I do know that Ancient technology is impervious to EMP. This is porbably because it's not based on electricity. but rather energy being conducted by crystals or something like that. So it would not shut it down. as for the structural damage and effect on pople inside, your guess is as good as mine."Well every living being regardless of whether it's carbon, sillicon, or even freaking uranium based for all biology cares, uses electrical waves to carry thoughts. The brain/nucleus/dna cluster translates these electrical into Images, commands, mental speech, and data just like a computer and is ultimately readable, controllable, easily influenced, and with difficulty disrupted.
Also unlike the death star I, the malevolence has very well placed turrets, so well in fact that the Malevolence's turrets all but wiped out the Republic task force even though they were enormous super heavy long range advanced assault turbolaser batteries meant for use against things the size of a frigate and above at a great distance could easily shoot small long ranged star assault fighters/tactical bombers out of the sky so to speak at close range, though it would have benefitted further from missile turrets, repeating blasters, beam cannons, laser cannons, and point defense turrets, so that any incoming fighter, bomber, assault craft, or gunship would be screwed, and the point defense weapons would blow any projectiles to pieces.
Though Anubis did make his ships impervious to charged particle weaponary in general, so that would be very surprising as his ships could easily attack worlds defended by a 1-100 Kuat Drive yard v-150 long ranged anti-orbit ion cannons and nothing else save for possibly deflector and if the world was really lucky a planetary shield *the ion cannon that defended hoth was a stolen V-150* as they would simply ignore the blasts, and the immense heat, as on specially modified destroyers like Grievous's Invisible hand and his brother ship's the Colicoid swarm and Lucid Voice, even the short ranged ultralight point defense cannons generate the heat of a 4.8 megaton bomb at minimum power. *don't even ask me about maximum, or why the hell grievous thought that quad turbolasers with each individual bolt having all the firepower of a 10 tetraton bomb or ten trillion tons of tnt equivalent, or in other words the equal of a magnitude ten earth quake at mimimum power on a destroyer sized vessel wasn't supreme overkill*
Though Kuat Drive yards W-165 long ranged anti-orbit planetary turbolasers would be a problem, as in just 3 shots at maximum range and normal power they would completely destroy a Imperial II class star destroyer, Maximum power says they could do the same to most super ships short of the malevolence or eclipse, had the rebels had that with their ion cannon, Darth Vader would be killed and The Death squadron, consisting of the executor and 5-20 star destroyers of both Imperial I and II types would all be rubble, The Ion cannon disables the star destroyers and the turbolaser blows them to hell. And the Deflector shield prevents the ships from firing back. However a planetary shield like the one on alderaann can resist the death star's superlaser for 1.5 seconds before folding under the sheer power and covers the entire planet instead of a 500 km *or was it 50 km?* radius as is the case with most deflector shields. With exactly 100 Planetary Turbo Lasers, 100 Planetary Ion cannons, 150 planetary Assault missile/torpedo launchers/tubes, 5 planetary shield generators * for 5 layers of protection* 25 deflector shields *for a back up defense* a large number of Gravity well projectors *one for every 500 km in surface area, umm area* and many many anti-fighter turrets and anti-ground turrets and point defense weapons, and many orbital weapons platforms, and 2 artificial rings each filled to the brim with weapons *over 100,000 weapons each* such defenses being placed on the most important of worlds a world could be practically invulnerable.
Though Anubis could probably crack such defenses with his skill. A trillion Star trek commanders couldn't figure out how to crack that planet in a trillion years with a trillion battleplans.
Wow. You really have a way with big words.
Um, no I don't think Anubis could crack through planetary defenses with his own fleet. Perhaps with an ancient or asgard fleet at his command. His advanced goauld mothership does not have the shields as good as those of the ancient ships, and i seriously doubt a normal goauld mothership could defeat a star destroyer one on one. it is also intersting to note that the Tollan from stargate also have a network of ion cannons for planetary defense purposes. These cannons have no EMP qualtiy to them, and are instead pure blast power. they are capable of killing a goauld ship in a few shots but they were completely unable to damage Anubis's ship.
Another thing we should consider is The star forge from KOTOR. With it Star wars universe has a virtualy unlimited amount of ships and that could mean victory for them.
If you destroy the globes on the command bridge and the bulge on the bottom of the star destroyer, if you hit the command view port the entire star destroyer is destroyed. EMP can disable the shields on the globe and the bulge and 3-5 proton torpedoes *each with firepower of about 5-500 megatons for fighters* then the view port is vulnerable and once destroyed the star destroyer goes out of control and falls towards the planet.
They are pretty slow, but very well armed, they are steam rollers, as most have one of the slowest FTL travel methods in this contest, save for the necrons, and the warp is filled with demons that will eat travelers, however with everything allied thats moot, however warp has erratic time flow, sometimes a ship uses it to head to a war only to find the war ended already or hasn't even begun. But WH40k capital ships have enough guns to make a shield of flak clouds. they also have a funky type of shielding called void shielding. Necron ships are the fastest, as they pretty much teleport. But lack of speed will be a crippling factor for WH40k as only star trek's drives are slower.
"AtPhantom said:but are extremely slow in their ftl travel, other than necron ships."Well what do we know about WH40K ships? how powerful are they compared to the other universes."they are the most powerful, and the best protected"
If we go by the setup and all factions/eras are usable, then I don't know who wins. WH40K has the Emperor of Mankind, who is supposed to be some kind of godly entity. Star Trek has the Q. SG:1 has the Ancients and Ori. I'd like to try and keep out of the otherworldy-being element. But if the Ancients can setup a stargate system across the galaxy, they can effectively wipe out the opposition easily by using that device that can reduce matter to its base elements. It's what Carter used to wipe out the Replicators. WH40k seems to have the most powerful offensive weapons though, but can be made useless if the crews throughout all of their ships are killed instantly by the Wave.
All otherworldly and godly beings are unavailable. Only the ancients in their mortal forms and pre-ascension technology are present. any and all forces from any point in time of this universes are available. and I maintain that stargate has the mos powerful ships here, but I don't know much about WH40K so I can't be sure.
Agreed Star Wars owns the super weapon field. And with the star forge they have a nearly endless supply of ships, but i think ships from Stargate or WH40K are far more powerful, and a couple of Auroras could destroy the Death Star in a fairly short amount of time.
What about the second one *completed* it would be 900+ km in diameter orb of quandium steel *which laughs off tetraton explosions* with shielding even stronger with a superlaser that in an instant generates more power than the sun will in 50 or so million years. And it can recharge it in a minute, which means in reactor power the death star is ludicrously advanced, though the second death star would probably fold under another planet buster weapon, but it has hundreds of thousands of heavy turbo laser batteries and thousands of tractor beams and in total probably has 2-50 million weapons besides it's superlaser. Perhaps only a planet buster could take it, though a swarm of cheap capital ships are a good way to protect the auroras against the super laser, which would decimate any ship from any faction, which results in the thousand or so death stars *remember there are many many copies of each thing* getting hunted down mercilessly until their destruction. The first death star is also a 216 km in diameter orb of quandium steel, though it takes 24 hours to make the same amount of energy as it's bigger couisin.
I may be biased about this, but I don't think it matters how big you are when there is a couple of millions of drones tearing through your energy core. Each aurora warship carries a couple of thousands drones, and Ancient city-ships boast a capacity of hundreds of thousands. drones are extremely intelligent, they automatically identify important point on a structure and target them, and will continue to do so even if their mothership is destroyed. Also keep in mind the ancient shields are impenetrable so long as enough energy is supplied to power them. Shields on Atlantis held back the ocean for 10,000 years when atlantis was at the bottom of it.
Now clearly the Death star superlaser would kill any ship in all four universes, but I don't understand how the rebel commanders missed the obvious tactics of STAYING ON THE FAR SIDE OF THE BLOODY THING!!! it has a diameter of 900 km, it can't really turn around in a second.
All jokes aside, an assault on the death star would require a fleet of ancient starships, many of them would be destroyed, and if a fleet was acompanying DS, succes would be very improbable, but The ancients are in my opinion the only race capable of effectively fighting Death star and other star wars superweapons.
Death star one would be pitifully easy to attack as long as you know where to hit it, it's defensive weapons are extremely poorly placed, with the heavy turbolasers going where small starfighters are bound to attack, and laser cannons being where capital ships are bound to come from. And there are heavy anti-capital ship weapons in a kilometer wide trench only fighters could accurately navigate through.
"Star Gate doesn't stand a chance in hell. Except for the replicators, Ancients, the Asguards and a couple of other heavy hitter races. "And Anubis's genius. note every hour on the hour a copy of everything is made so everything's number is squared every hour. This was really to allow the numerically challenged universes to stay in the game. Though star trek is still first to go down against the sheer brutallity of the orks.
From what I've seen, SG1: ships move faster than any ship in Trek and Wars. Ori ships were also almost impossible to destroy because their shields were so powerful. And remember, they make Goa'uld Mother Ships look defenseless, and they could take a nuke with a normally 60 megaton yield and magnified it a thousand fold using Nequadria, and it still didn't penetrate the Goa'uld's shields. SG:1 had to combine Ancient and Asgard tech in order to penetrate the shields on an Ori ship.
"Hedatary said:Replicators, Asgard, Ancients and Anubis are pretty much all there is in stargate, there are also the Tauri, which have like four ships and the Wraith which do have the vast numerical advantage over the other races, and are pretty hard to kill."Star Gate doesn't stand a chance in hell. Except for the replicators, Ancients, the Asguards and a couple of other heavy hitter races. "And Anubis's genius. note every hour on the hour a copy of everything is made so everything's number is squared every hour. This was really to allow the numerically challenged universes to stay in the game. Though star trek is still first to go down against the sheer brutallity of the orks."
"From what I've seen, SG1: ships move faster than any ship in Trek and Wars. Ori ships were also almost impossible to destroy because their shields were so powerful. And remember, they make Goa'uld Mother Ships look defenseless, and they could take a nuke with a normally 60 megaton yield and magnified it a thousand fold using Nequadria, and it still didn't penetrate the Goa'uld's shields. SG:1 had to combine Ancient and Asgard tech in order to penetrate the shields on an Ori ship."And there are more powerful ships in stargate than the Ori. Also keep in mind the one Goa'uld energy bolt is rated at 200 megatons. these are the weakest ships in SG.
When it comes to comparing multi-verses, 40k has it without a doubt, for a number of reasons:
They have total ground supremacy; titans, bio-titans, etc are unrivalled.
They can travel anywhere instantaneously due to the Necron’s total manipulation of the material universe, or, the Old One’s use of the Webway.
On the other hand I concede that, should the numbers be true (about the star-gate ships; most of the numbers concerning star-wars are unreliable, inconsistent, and generally based on fan-fiction) then in a pitched battle between spaceships, Star-gate will come out on top (if only barely, and I say that not knowing the full potential of Necron and Tyranid ships).
However, the Warhammer universe has one trump card; their Gods. (Comparing anything to the gods of 40k is silly)
There are the Chaos gods, who draw their power from an entire alternate dimension, and the emotions of all the sentient beings (and if you combine all the multi-verses, that is a of sentient beings). This combined with the huge magnitude of unprotected psykers in the other universes, would result in a demonic invasion the likes of which would smash aside all opposition. No only that, but they are a massive and very effective phycological weapon. Not only is a demonic invasion bloody scary, but they are able to unleash things such as Nurgle Plagues, against which there is no physical defence. Also the manipulations of Slannesh and Tzeentch would be hard to resist (should they work in unison). Nothing in any of the universes would be prepared for the horror of Chaos. They would all turn tail and run, and due to their nature, big ships means nothing if your crew are exploding into bloodthirsters.
And the C’tan are basically anomalies in the creation of the universe. While you can tell me the death star produces as much energy in an instant as a star does in 50 million years (which is balls), I do not believe that anything in the multi-verses can resist what is essentially a piece of the universe incarnate.
Then you have the Old Ones and their manipulation of the webway and pykers.
There is also the Emperor of Mankind, who has single-handedly held Chaos at bay; no small feat.
And there are the Ork gods, Gork and Mork, who would become exponentially more powerful if all the orks fought at once as a unified green tide.
Q and the Ancients are nothing when compared to the power of Gods. I’m not talking about super advanced races (although 40k has a fair share of them), but GODS.
For these reasons, when Gods are involved, it is foolish to compare universes. The immense power that the writers bestowed upon the deities of the Warhammer 40,000 universe completely out-does anything.
Also, many of the numbers concerning star-wars (such as population, size of armed forces, size of fleet, power of weapons / shields / the force) is grossly unreliable, inconsistent and twisted by fan fiction. Please, go by canon sources when talking about Star Wars.
"There are no gods in this battle. they're all busy beating each other on another plane, otherwise star trek and their omnipotent Q would win.
Only ships and mortals."
Fair enough, although what constitutes a god? Do ancients count?
Also, it should be noted that while acting as Sentient entities, the Chaos Gods even with their very existence are able to influence the material universe. Even without the Gods, the mere presence of the Warp would cause a massive invasion of if not demons, other creatures of nightmare from the warp which are not directly linked to said Gods.
The old ones are also not gods. Their psykic abilities and use of the webway (which acts using an alternate dimension, and so could bypass the shields) could circumvent the Ancient’s shields, even ones such as those belonging to Atlantis.
On ground, as pointed out, 40k is unmatched, even by Star Wars, who simply lack the heavy support and numbers of the 40k universe.
As for space, discounting ancients, the Navies of the 40k races are vastly superior. Not only are Imperial ships bigger than even Ori Motherships (10km as opposed to 1.1km), they are armed with the equivalent of plasma beam weapons; Lance weaponry, which is equally capable of slicing through shields. The sheer bulk and mass of the ships of 40k would / should provide time against plasma beam weapons for their own Lance weapons to deal with the Ori ships. Also, if it was called for, the Orks could literally ram the Ori ships with their huge asteroid based (20km+) space Hulks. The Tyranids could perform a similar action with their own ships, due to the Hive mind’s willingness to sacrifice it’s minions.