Zhang Tie was greatly shocked by the Idiots' first attack towards the ground. The airship threw 24 white phosphorous gel bombs for 8 times, 3 in each time. While the casualty of the crew member was zero, the achievement was great as they killed at least 40,000 demonized puppets, destroyed the iron bridge and successfully protected that human troop and those women and kids.
It also benefited from the terrain. If it was another terrain, the demonized puppets would have greater space to move; if so, the 24 white phosphorous gel bombs would not have such a great impact. However, the most important factor for the triumph of this battle was the overwhelming air domination on Zhang Tie's side that he felt for the first time.
If not on the real battlefield, you would never know the importance of air domination. After this experience, Zhang Tie had a clear recognition of the concept of air domination.