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Upon discovering new enemy intelligence, reconnaissance had to be conducted.
Why not use drones for reconnaissance? The reason was simple. Gao Yuan and his team weren't facing some backward tribal forces, but rather the Sanitation Worker, equipped with gear that couldn't be considered top-notch but was certainly comprehensive enough to potentially detect drones with radar.
Four people, four different preferred methods of advancement, four kinds of hand signals, four accustomed ways of conducting recon, and even their focal points during reconnaissance differed.
Every country has its own military-building philosophy, and every army has its own combat ideology, which is reflected in equipment and tactics. Therefore, from the top down, there are almost no two people with identical habits.
In the current reconnaissance mission, the four individuals each had their own focus.