MTL - Unlimited Machine War - Chapter 2750 Where is this especially used

A scientific genius named Thomas Harrier was transmigrated to an imperial prince body after a car accident that took his life. He found out that he is in a world similar to our own with a timeline akin to early twentieth century. The body that he is occupying was the imperial prince of a failing empire who suddenly rose to power after a successful assassination attempt of his father. Unaware that the attack is just the beginning of what is to come. He faces many challenges throughout. Will Thomas Harrier be able to live his second life in peace while running an empire and getting it back to its former glory? Or will he succumb into a conspiracy lurking within the country's borders?

Expect some:

Cold war era techs.

Super battleship with advanced electronics, propulsion, and fire control systems?
Helicopters?
Missiles?
Modern medicines and equipment?
AC-130?
A nuke?
Challenger or Abrams or Leopard?
F-4 Phantom or MIG-21?
Colored TV's.

Everything!!!

PS. Cover not mine, I just found it on google.

I have experienced all the eight sufferings of this world.

I do not ask for nirvana, but for you.

Wild and hard-to-tame demon (gong) x cold, ascetic and childish immortal (shou)

- Description from Novelupdates

This world became a playground for various other worlds. Every living creature was digitized and awaited the endless slaughter and torture of the players from other worlds.Yi Zheng, who had become a mob rabbit in the Beginner's Village, decided to lead a group of rabbits. They sprinted across the grasslands, did crunches, bench-presses, rowing, and swimming etc.A year later, when the players descended, they saw more than just a group of small monsters.They saw an army of terrifying, demonic, muscular rabbits!The Rabbit King sitting on the throne high above waved a carrot as he threatened, “From this day forth, don’t even think of leaving Beginner's Village!”

After an accidental space warp, Xenos finds himself in a place known as the True Universe—a vast cosmos filled with countless races, yet devoid of humans. Longing for Earth and a home he can no longer reach, Xenos trains tirelessly for billions of years, eventually reaching the pinnacle of what the universe can offer.During his relentless cultivation, he uncovers conspiracies, hidden truths, and the devastating reason why the human race is absent among the many races of the True Universe. The weight of this knowledge pushes Xenos to the brink of despair. Refusing to give up, he resolves to take matters into his own hands to rewrite fate itself.However, the ruling powers of the True Universe catch wind of his intentions and launch a brutal attack. Though wounded, Xenos narrowly escapes. After an arduous journey, he finally returns to Earth—only to discover his home universe has been destroyed. Overwhelmed by grief and anger, Xenos uses his knowledge to travel back in time to January 1, 3038.Now in the past, Xenos must act carefully. Using his Paragon-level cultivation risks alerting other Paragon beings, so he remains in the shadows, guiding humanity from behind the scenes. His mission? To lead the human race on a perilous journey through the planes of existence to the True Universe, where they can reclaim their rightful place among the stars.Will Xenos succeed in his quest, or will the forces of the True Universe crush his dreams? Find out by reading his epic journey—one filled with trials, heartbreak, and the burning hope of restoring humanity’s legacy.From the Author (Comedic Edition):Let’s be real, we’ve all had that “Oh, it’s good, but I’ll bookmark it later” moment. Spoiler alert: you’ll forget. Just bookmark it now, save yourself the regret—and me the anxiety of wondering if you’ll ever come back!#Reincarnation, #TimeTravelAdventures, #PowerfulProtagonist #SectBuilding, #ParallelUniverses, #DifferentRealms, #MultiverseJourney, #AncientMysteries, #AncientRaces, #CosmicBattles, #FantasyWorlds.