Apparently, the man who desperately leaped out of the cave in an attempt to escape had jumped down from a height of about 6 meters without any regard for his safety. As a result, Leonard and the others found him unconscious when they approached him.
"Even though this guy isn't doing anything good and is probably not a good person, I have to admire his decisiveness," said Joan after stripping and binding the man of his equipment.
She said this because the gunman had been stationed at the cave entrance alone, half-crouching behind a protruding rock for cover while scouting the situation outside.
So when he noticed the collapse of the stone wall above the entrance, it was already too late for him to stand up and retreat. Thus, he had no choice but to issue a warning and rush out of the cave in a bizarre posture.
