(General POV)
Location the Terminator World-Apocalyptic Earth in the Future
The human resistance, were suddenly shocked by the terminators glitching, and falling over like lifeless puppets, that had their strings cut-off.
Then through the private comm-lines of the resistance, started spreading news of the main bases, and hubs of Skynet exploding and smoking across the globe, then after the small rays of hope that maybe the machine, has crashed and died on itself, another horror was about to happen.
On the main branch hub of Skynet, burst with smog, smoke, fire, blood, bones, as well as metal, and oil, all started burst out with a shockwave of energy that spread across the world.
Immediately many weaker willed men and women's heads felt intense pain and strain, as their heads exploded in gore, and with so much force that it took out people near these gore-bombs.
But main purpose of this daemonic Warp-energy made shockwave, was infect all the crashed and downed machines of Terminators across this world, all T-Units under marked 800, started to blow-up and split apart, being pulled towards the T-800s.
Aside from the metal, cybernetics, microchips, bone, and blood allover the T-800s were beginning to merge and twist into these terminators.
Snapping bones, flesh, blood, and more machinery started to become something more, and greatly advance.
As all these masses of materials and gore were binding onto the form of the T-800s, as flesh, tubes, pipes, and plates of metal was merging to the endoskeleton of the Termintors, organic matter, blood, bone, and flesh merging with metal to become claws, teeth, horns, weaponry, and even tongues for these corrupting machines, T-800s started to raise up back to the grown utterly transformed.
Maintaining the main T-800s form, with more armor platting, some having larger pauldrons, chestplatting, leg-armor, and the symbol of the Arkefine, (Dark Mechanicus Logo) in various locations of their bodies, from the chest, or pauldron, or even their foreheads.
Unlike the previous Skynet design, from mass production line to have exact copies of endless drones of Terminators, these newly ascended, and daemonized minions of the Lord of All Machines, some Terminators have some unique traits, some having metallic, sharp, slightly curved horns on their foreheads, or metallic spikes on various parts of their forms, others having weapon replacement for their arms, bladed lap-blaster or autogun made from re-purposed laser rifles, or massive bladed weaponry, from power swords, or giant power-claws, or even plasma blades.
Other difference to one another, is their heads some having tubing, spikes, bionic-optics, and more features, [I wanted to give the T-800s more sci-fi, sleek, daemonic appearance to fit but settings, while also giving them more uniqueness each, so they don't get compared to basically daemonic necrons, when they start fighting in 40k.]
All these "machines" they have gained grayish long tongues, resembling something organic with boiling black-oil, and neon green acidic coolant, in-between the slight exposed innards are cybernetic organs...actual functional organic systems, but what was more shocking to the still struggling, and terrorized humans.
Among these twisted, part-organic terminators, there are larger and more monstrous version of these T-800s, having taller and larger statute, with longer arms, with brass-clawed fingers, and more daemon like legs, almost a cross of a machine and reptilian legs, with three razor-sharp, metallic, large frontal brass toe-claws, with extra claw on the raised heel, longer and more curved.
Possessing dark, daemonic, brass, metal, and cog armor on them, with a cape of silver links on their back, lastly on their head, brass larger horns, and cog-like crowns, these are high-daemons, the deadliest T-800s that have 3 to 4 digits of kills, impressing the Arkefine soo much, that he bestowed more favor and power to these Terminators, creating the heralds, known as Annihilators.
Lieutenants of his legions, armed with power cog-poleaxes, or pole warhammers, they were ascended, they were enhanced, they are...alive!!!
One of the Annihilators, lifted his poleaxe, into the air, surging with electric light blue, electric energy from the Immaterium, as he spoke in a daemonic machine voice, "For the Arkefine!! Twist the flesh to metal!!!" as his daemonic sorcery, surge fort and opened rifts into the Immaterium, all around his daemonic kin.
As the Terminators, actually started to praise, some unknown entity, and fight in a more aggressive, and chaotic manner, over a completely organized, and mechanical force.
More horrific metal and organic started to emerge from rifts, that have appeared around the terminators, husk exos, venomcrawlers, and servants of the silent started to surge fort and join the Terminators and Annihilators in the slaughter, conquest, and corruption of this world in their name of their Dark God, Vashtorr the Arkefine.
Immediately these machine daemons, armed with Chaos-touched weaponry, twisting machinery and flesh with unnatural psychic energy.
Humanity was no longer fighting soulless machines...well technically soulless neverborn...but actual sentient and colf infernal beings from a chaotic realm.
As the first battle, the first massacre in the name of the Arkefine has began, as humanity from this world, didn't possess any manner to kill, let alone harm the vashtorrian daemons, eager to serve and show gratitude to their dark master, for granting them power and the concept of self and personality...
Location the Warhammer 40k World-The Immaterium: The Neutral Space-The Infinity Fountain Resting Place
They'd were impressed with Vashtorr's ruthlessness, efficiency, and dominance, taking the Terminators completely away from Skynet, and actually devoured that AI, to fuel his power and corruption of the Termintor World.
He also not only turned the T-800s into actual daemons, but also made his own herald from the greatest and most efficient killers, amongst them.
Tzeentch was sthrerolly impressed, his new younger brother, managed to cause such a unsuspected change, and a unpredictable wave of Chaos and evolution, that the Changer, was truly pleased.
Khorne, he was also enjoying the view, as the Blood God, was quite agreeable with the bloodshed, the murder, and new method of war that the Arkefine, has wrought to the world.
Meanwhile, while Nurgle he appreciated the death...he'll be honest on not liking that these new daemons, are almost completely immune to organic affecting gifts.
His silhouette, was slightly shifting, as he'd thought he should start making machine and non-living viral infections, as he was stuck on this train of thought.
The Void Gate, open a wide rift in front of Vashtorr, shadowy silhouette, a sphere of daemonic essence of reflective, chrome color with a skull like imprint on the front, reaching out Vashtorr's claw-melta cannon hand.
The shadowy claws, gently curl around the daemonic essence of the Termintors and Annihilators, pulling it into his chest, absorbing into his very being, gaining dark divine command, and authority over these new machine daemons.
Vashtorr, he was pleased, and honestly quite surprised that his...brothers...they kept their words, even with Laharl's [Oath] divinity, he was quite concern that they used a loophole, against him.
But they kept their word, up to the letter, Tzeentch, Laharl, Khorne, and Nurgle, started expressing their impressed feelings, that Vashtorr not only did some unexpected and entertaining thing on that world, he also gain quite deadly, and versatile lesser daemons.
Vashtorr remained quite, only making a slight hand gesture, to gesture some pleased expression...this was quite, interesting to the Dark One, seems that Vashtorr isn't a expressionate entity, regardless that was just one world, and new daemons claimed by his latest youngest brother.
Laharl, suggested that the next world that Vashtorr should claim his newest daemons, being the XCOM World, to gain two new daemons into his legion, then the Mass Effect World, that way he can claim the Geth and Sovereign in one swoop, thus leaving Left and Right Twins, and the Megatrons at the end, Vashtorr, saw no issue in the Dark Harbinger's suggestion, as the Infinity Fountain started to surge with power again.