Bleach : I Need To Rizz To Become Stronger ?! - Chapter 38: Field Training in the World of the Living (Bonus - )

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.

Pendulum clocks replaced sand glasses; the world’s first pocket watch ticked through its 100th year. Steam power welcomed the advent of machinery; industries took over farmlands. The study of Science brought humankind out of the clutches of superstitions and pushed them to a path of endless possibilities. And one man witnessed it all.

He was a moth among mayflies, fluttering through as generations replaced generations- fuelled by an endless thirst for knowledge. But fate decided to introduce him to a butterfly- someone alike, yet so different.

Follow ‘The Actor’ Xavier Godwin and ‘The Seeress’ Yue Lin as they delve into the world hidden from the common eyes- a world of magic and mysticism- as they evade the sights of countless hidden organisations, and create a secret society of their own.

Qin Lin was electrocuted by playing a nostalgic “Ranch Story” game, and suddenly gained the ability to enter the game. He also found that he could bring the watermelons grown in the game out of reality.

At first, he calculated that a pound of watermelon would sell for 2 yuan. As long as he sells 10,000 catties of watermelon seeds in the game, he can earn 20,000 yuan a day.

Later, he discovered that by upgrading pastures, he could obtain advanced crops beyond the world, raising livestock to obtain advanced livestock breeds that were far beyond the world, and building factories to obtain various formulas that were far beyond the world, and everything was different.

- Description from novelbuddy

“A qualified gunner should have enough firepower coverage.”

“So my battery has a diameter of three thousand meters, which is very reasonable.”

After a grand fireworks, Chen Jiang looked at the shocked eyes of the passers-by around him and said seriously.

…

When all races were thrown into a world and started to fight, a world with the theme of survival began.

- Description from novelbuddy