MTL - Supreme Demon - Chapter 616 Ancient weapon lock

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.

What would happen if someday, someone gave humans the opportunity to have the power of the legends?Total Chaos!That's the answer to that, people started killing, r*ping, extorting and torturing, to become the strongest.In such a world, a nerd like Eric became one of the strongest.With the resolve of a better life for his family, his loved ones, he managed to flip his destiny around, and become the strongest, and built his Empire.He went so far, that he was close to ascending to the Immortal World, that world of dreams.His story looks like one of a fairytale, but a fairytale it's not.Just as he was about to ascend, he was betrayed and killed, by his closest friends, and his half-brother.At the death's door, he learned about his brother's atrocities, but his time had finished.If only he had another chance!If only he could have another shot at life!He would definitely live differently!But could he!?At that moment his soul was transferred into a black space!

Li Wei accidentally obtained a simulator that allowed him to manage a family of cultivators. He discovered that the descendants in the game would offer him strange and unique sacrifices.“Thanks to the ancestor for the gift, our family has become the most powerful family!”“Hurry up and offer a sacrifice to the ancestor. Please accept this spiritual weapon!”“Ancestor, we have already conquered the immortal world!”Then, one day, the descendants of the Li family, who had been in the game, appeared on Earth in grand flying boats. Under the astonished eyes of the entire world, these descendants paid homage to Li Wei in great numbers.“Welcome our ancestor home!”

This is a story about Gong Lixin who was the young master of an ancient underground palace in the ancient times. He was raised by his master and forced to partake sexual relationships with numerous people to cultivate his Yin Body. His master who has a Yang Body was going to absorb him after he has reach a level to become stronger. MC refused and killed his master also dying at the same time. Then he transmigrated to the modern time and thinking he will enjoy peaceful life, the end of the world arrived.

Being someone with no special powers except for his martial arts, see how he use his martial arts to dominate the times and find his lovers.

- Description from Novelupdates