Chapter 2520: Chapter 2520 who is a friend, a mortal enemy

When Yun Jian, Shen Ji, and Mad Dragon were in the dark soul organization, they stood out among a group of secret agents who were trained by the dark soul organization.

After a few years of training, only Yun Jian, Shen Ji, and Mad Dragon survived out of thousands of people.

As a secret agent and an assassin, they had to be proficient in all kinds of cold weapons, light weapons, and heavy weapons. They had to learn to adapt to all kinds of situations.

Because they had to travel through all kinds of missions, they had to come into contact with many things. If they wanted to successfully complete the mission, they had to learn all kinds of weapons.

Not only did they have to understand how to use such weapons, but they also had to use them flexibly.

To put it bluntly, they had to be very skilled in using these weapons.

And the best place to train and use all kinds of weapons in the world was on the battlefield.