It wasn't strange for a scenic spot to have retired Special Forces soldiers as security guards. Even Special Forces soldiers had to face the problem of retirement, and only a few of them would switch careers.
many of these retired special forces soldiers would actually join some specialized security companies, or continue to live a life of blood through special channels.
Some people were so used to killing that they might even suffer from some side effects, making it difficult for them to integrate into society. Only the world of blood and bullets belonged to them.
Naturally, there were some retired Special Forces soldiers who had the means to find high-paying jobs.
These retired Special Forces soldiers were naturally comrades introduced by the security guards at the laboratory.