Lin Chen used to be in the special forces. He was the most powerful squad leader of the special forces. He sacrificed his life in another mission to protect his teammates. Now that he has been given a chance to be reborn today and has a system, he must make up for the regrets he had in his previous life. Watch him step by step become the most powerful and ruthless devil instructor in the entire army, and he is also part of the first special forces unit in China! "
The content is good, but the pace is a bit fast.