VRMMO: The Unrivaled - Chapter 22: Spawn Camping

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.

Jin-Ho Kang was just another B-rank Hunter—one of countless warriors struggling to rise in a world dominated by monsters and guild politics. When an A-rank dungeon scouting mission goes horribly wrong, he and his team are slaughtered. He should have died.But instead of death, he awakens in an abyss beyond mortal comprehension. A voice older than time itself speaks to him, a decree is made, and the truth is revealed—he is no longer human. He has inherited a power that was never meant to be his.The world forgot him.But he has returned.As a Sovereign.As the Monarch of Shadows.And as the boundaries between life and death begin to blur, the world will soon realize…The true King has awakened.

After getting banned from her own world at an young age for a greater purpose, Esme Watts was living happily in the human world.

Disguising as a human girl, she was getting immense love from her human parents.

Slowly, she was forgetting her own identity and was living her life well with some beautiful and loving people around her.One day her joyful world turned upside down when she was suddenly kidnapped.

After getting kidnapped by the ruthless vampire king Aaron Richards, Esme Watts was forcefully locked up in a dark room waiting to be rescued by her dear ones.

Even every breath she took was too painful for her numb body..As days passed, she kept searching a way to escape from this terrific vampire world.

But after knowing Aaron personally and closely, will she try to escape or will she be trapped by his possessive love?

Will Aaron love her after knowing her true identity??

Why did Aaron want her desperately? All is in the name of love or something else!

The day of marriage. Lifting the sedan chair to the door, he lightly lifted the sedan curtain, but he saw no newcomer, only a piece of paper pressed under a stone.

Looking at her flamboyant font, his thousand-year-old pupils faintly spurted out a few flames. good very good. On his perfect and impeccable face, there was a faint smile, not angry but smiling.

However, no one saw the hidden chill in that smile. That woman dared to run away from marriage, he would let her know the consequences of doing so.

- Description from novelbuddy