The helicopters were being sent in as a distraction measure. As soon as the guards protecting the fortress were distracted, the soldiers on the ground would move in sharply and secure Doctor Tang Siming and his family first.
Orders were to take down whatever stood in their way using any means necessary.
Three helicopters flew over the fortress while shining very bright lights and a loud voice on a megaphone kept ordering the criminals to surrender. The commotion was so loud that the guard dogs in the fortress barked endlessly.
Thanks to this, the guards were caught unawares which allowed Chi Lian and the soldiers to sneak in without detection.
"Follow me." Chi Lian motioned to them.
Carefully, they made their way deeper into the tunnels. Suddenly, Chi Lian stopped and held up her hand.