Reincarnated with a Military System in Another World - Chapter 3: Utilizing the System

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.

It was the year 2050. The world had released an online game, “Second World”, that shocked the public beta. Gold from the game could be exchanged for real-life currency, attracting countless players. Every country in the world fought for game resources. The main character immediately entered the game after this wave.

After entering the game as an adventurer (job before job change), he stepped into the first stage of his life. It was a stage that even a child could pass.

He thought that it was a normal stage. However, he did not expect to be locked into the game and continuously repeat the stage!

As time passed, the stage finally let him pass as per normal a thousand years later. He finally left the dungeon after clearing the stage. It was only now that he realized that this was only the second day of the game!

He realized that this was not a dream after he saw his attribute panel. What followed was a variety of system notifications!

“Reached MAX proficiency with the ax—Ax God!” “Reached MAX proficiency with the sword—Sword God!” “Reached MAX proficiency with the heavy shield—Shield God!” “Reached MAX proficiency with all weapons—Almighty Master!”

“As your proficiency as an adventurer has overloaded and you have not changed your job in a long time, you can now undergo a unique job change as we have detected your proficiency with weapons—Battle God!”

A deep crack appeared on the ground when he struck the level 1 wild monster with the small wooden sword in his hand!

She married a driver she just met. However, the last thing that had ever come to her expectation was that her bridegroom was no other than the most mysterious billionaire in the city. This marriage brought her baby twins. Thus, she worked harder to support this family. She was the queen of the entertainment circle. When she met the king who dominated the business world, she finally knew her husband’s true identity.

If she could use any three words to describe herself, Jiang Yue would say that she is rich, beautiful, and extremely smart. Unfortunately, she took these for granted in her past life, causing her downfall.