MTL - The Overbearing Chief Husband’s Favorite: Baby - Chapter 3310 My name, Sha Xingbao

A normal office worker, Toru Minasuki, was swallowed up by a dimensional fissure and reincarnated into a different world. Upon reincarnation, Toru was given a [skill board] by God. Make the most of it to acquire all the necessary skills! Even though he is an “inferior person,” he’ll make his way to the top!

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.

She roused from a pool of blood, vowing to exact retribution on those who had harmed her.

Lin Xiao was addicted to reading Qidian novels. He always fantasized that he would have a day when he could transmigrate and then embrace beautiful women all over the whole world, becoming the strongest person in the mainland.

After he really transmigrated, Lin Xiao stubbornly always believed that he was a protagonist until he met Ling Luo.

Only after being killed by Ling Luo did he know that he was only a cannon fodder villain in a novel.

When he restarted his life and hatefully wanted to oppose his fate at least once, he was ruthlessly crushed again.

Okay then… since a protagonist was determined to be like this, he wouldn’t oppose a protagonist anymore…

The two of them were similarly straight guys…

When he restarted his life again, Ling Luo unexpectedly suffered an Love Herb’s poison…

Lin Xiao internally cried as he looked at a certain person who tied him onto an obelisk in the back and thought, who could tell him what this was all about?

- Description from Novelupdates