Imagine, on the battlefield, when your comrade is severely injured but not fatally so, what would you choose to do?
Would you abandon him, leaving him to fend for himself, or would you rescue him in time?
Knowing that tactics like encircling to strike at reinforcements exist on the battlefield, one can realize that in the vast majority of cases, injured team members will receive aid; emotions aside, no one can ensure they themselves will definitely not get injured.
Thus, after a warrior is wounded and loses their combat capability, they actually end up dragging down one or two other soldiers tasked with caring for them, which is precisely the outcome Li Ang wanted.
After they realized there was a sniper, they immediately lay flat on the ground, and someone had already begun to drag away the person who had just fallen.