Suddenly, the communication channel was full of harsh screams, and many students fell to the ground in pain, with splitting headaches. The two team members were sneaking towards the gate, preparing to place explosives, but at this moment they fell to the ground in pain with more than ten meters away from the gate.
There was no movement in the tower on the high wall, but at this moment, a faint blue fire suddenly spewed out, and the dense rain of bullets hit the two team members, causing their bodies to keep beating. Even in their advanced armor, they couldn't stop so many bullets.
Chu Jungui found that the whistling in the communication channel has a specific frequency, which can strongly stimulate the nerves of the human body, causing great pain and loss of balance. He immediately adjusted the outline of the ear slightly, avoiding that specific frequency.