Counterfeit Hero - Chapter 49 - 9 This plan is trash

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.

[You have been chosen as a Lord of the Intergalactic Lord Project.] [Your reward: A floating island to call your own.] [Your mission: Build your kingdom, summon legendary allies, and dominate the worlds!] [Your advantage: An SSS-grade Ultimate Gacha System.] Atlas Blackthorn, the newly chosen Lord of a floating island, wields the power to summon legendary warriors, powerful artifacts, and, of course, waifus. With boundless ambition and the Ultimate Gacha System at his side, Atlas sets out to become the strongest Lord in all worlds. How far will his ambition take him?

Eighty years ago, an alien war broke out in Earth’s orbit. A powerful fugitive known as Tree was pursued by an extraterrestrial force. In the battle’s aftermath, the fugitive’s heart merged with Earth’s core, giving rise to a massive tree—marking the dawn of superpowers.Awakening. A phenomenon where humans gained extraordinary abilities. Seventeen years later, nearly everyone had awakened… except a few. Those who failed were called Rejecters, the lowest in society.Zane Carter was born into infamy. The son of a fallen superhero-turned-supervillain, he faced discrimination from birth. He dreamed of being a hero, but his father’s sins made him an outcast. Even after rigorous training, his Awakening failed. Rejected by the Hero Academy, ridiculed, and cast aside—his fate seemed sealed.Until one day…[SYSTEM ACTIVATED]Welcome, User. You have been selected as the recipient of the Borderline Supervillain-Slash-Hero System.Generate your first skill? Y/NWith his newfound system, Zane is given a choice: become the hero they never wanted him to be… or the villain they always feared.

Satou Shiki a Japan present-day university student suddenly one day he got attacked by a slasher when he open his eyes he was already transferred to another world’s labyrinth city. In that another world he who was awakened to do a lot of “things”.