MTL - God Rewards Those Who Work Hard: No Pains, 100% Gains - Chapter 13 what bottleneck? What limit? nonexistent

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.

When gods gather, lightning will strike and the earth will move. Immortals! Which of the numerous way to immortality should one follow? Immortals are hard to seek, but why should immortals hide? Heaven has no mercy, but humans have emotions, and these emotions hinder the road to longevity!

Young Lin Yi, betrayed by his beloved, had his core taken away and became a pariah despised by all.At a fortuitous moment, Lin Yi acquired the ancient legacy 'Chaos Sword Body Technique', rising against the odds to embark on a path of revenge!“Those who have wronged me, Lin Yi, shall be repaid a hundredfold!”

[Has entered the boutique, strongly recommended! 】Completed two high-quality Douluo books, “The Douluo Who Started From Blowing Up the Soul Ring” and “I’m in Douluo, I Ate the Blue Silver Emperor”!

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A reader said: This novel was not intended to be read at first, but later I found out that it has a legacy of Wei Wu, the legacy of the prime minister.

Then I watched and read it, and I was overjoyed; so I read it quickly, and I can’t calm down for a long time after reading it. I complain that the content lacks details, the number of words in the article is too small, and the update speed is too slow.

I have this resentment in my heart, and it is hard to forget, so I made this post to express my feelings, and to feedback the author’s big mistake in his article, which is due to the slow update and the small number of words.

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- Description from novelbuddy