A hysterical lunatic would always have some crazy thoughts. When he found that he couldn't live, he would drag others down with him.
If I'm not having a good time, others can forget about having a good time.
The person who created and released the zombies was an out-and-out lunatic. He no longer cared about his own life and death. Instead, he wanted to destroy the entire world.
While the Army was clearing the zombies, this guy also jumped out and attacked the soldiers.
Relying on his powerful strength and speed, as well as the cover of the chaotic environment, he successfully assassinated many soldiers.
All of this was to protect the zombies and cause more damage.
The ordinary soldiers were no match for the extraordinary species and were quickly forced to retreat to the exit of the stadium.
The commander finally realized that this matter was not simple. It was obviously the work of an extraordinary species.