The layout of the basement wasn't complicated. Because of this, there were no blind spots to cover them. Xia Jinyuan and K7 were out in the open. Similarly, the other party didn't have any cover either.
Also, Xia Jinyuan had pressed the button that triggered the explosion, making the people in the basement think that the people outside had been killed. They climbed out of the secret entrance one after another to check. Under Xia Jinyuan's cover, K7, who was hiding in the dark, rushed into the secret entrance at a very fast speed and went to the basement.
Gunshots were heard from K7's side.
It was T6's turn to wipe out the first wave of people who rushed in.