What do you mean by scout?

Refers to reconnaissance (enemy situation) and also refers to the person who conducts reconnaissance.

Scouts used to be people who specialized in observing the enemy's situation on the frontier. Shang Shu Yu Gong: "Scouts say they are in danger and wait on thieves." In the Qin Dynasty, it was regarded as a kind of light imprisonment. For example, Qin bamboo slips "Question and Answer Method" said: "What can you say when you are weather-resistant?" Resist being a shepherd. "According to the Qin law, it is not allowed to appoint the left servant official, and the thief is forbidden (the soldier who patrols the thief). After the Qin dynasty, there was no such criminal name. China scouts originated in the Han Dynasty and were named after the princes directly under them.

In the team, the role of a scout is to quietly solve the sentry, sneak behind enemy lines, steal important documents or assassinate enemy leaders, all of which are within his scope of work. So scouts now have the role of special forces. It was not until later that the division of labor was refined that the terms spy and assassin came into being.