MTL - Country Weapon - Chapter 233 one...

Shen Dongqing is a powerful, thousand-year-old ghost. He had just possessed a body and hadn’t even relaxed for two days yet when he was pulled into a white, parallel world.

On the first day of the Infinite Nightmare Game:
Other players tremble, crying and wailing wanting to go home.
Shen Dongqing eats, sleeps, and plays ‘Fight the Landlord’ (card game).

The second day:
Other players are chased endlessly by ghosts, crying loudly ‘Save me!’
Shen Dongqing eats, sleeps, and plays ‘Fight the Landlord’.

The third day.
Shen Dongqing……
The ghosts finally set their sights on this lazy player. The other players watch on in glee. As a result, who knew that this slim and pale youth would stand up and easily dispatched the ghosts with his bare hands.

Other ghosts: Can’t afford to disrupt this elder. Let’s go, let’s go.

- Description from Novelupdates

It was a dangerous era. Extraterritorial ferocious beasts occupied 90% of the living space in the world, while humans could only survive in a small space. Fortunately, some of the surviving humans awakened to genetic martial arts! Breaking the shackles of one’s genetics was the foundation of cultivating martial arts. Lin Feng, who was born with congenital disease, could not experience a breakthrough. However, by some fateful encounter, he awakened to the ability to merge genes.

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.

In the online game Glory, Ye Xiu is regarded as a textbook and a top-tier pro-player. However, due to a myriad reasons, he is kicked from the team. After leaving the professional scene, he finds work in an Internet Cafe as a manager. When Glory launches its tenth server, he who possesses ten years of gaming experience once again throws himself into the game. Bringing with him the memories of his past and an incomplete, self-made weapon, his return along the road to the summit begins!

After fighting and scheming, who snatched away my glory? Under the tossing of the wind and rain, my dreams shall still appear as though they had never been shattered. In all its splendor, the path shall never be lost. Before the gazes of millions, this is where I return!

*Under the Gaming category, The King’s Avatar received the title for Best Work in 2013 and is the first and only 1000 Pledged Work (千盟作品). It has 23 million hits on Qidian and has the 2nd most recommendations in its category with 4.6 million recommendations.

- Description from Novelupdates