Timely rescue I?

Ling Qingyu narrowed her eyes in deep thought and flashed out a sledgehammer from her bracelet. Holding it tightly, she swung it against the nearby wall, smashing pieces of building blocks. Tang Ziyi noticed her actions and shook her head. Even with their strength, they might have to strike several times to carve out half of the wall.

Indeed, Ling Qingyu struck several times before giving up, managing to carve out nearly half the wall. Tang Ziyi radioed amidst the roar of .50 caliber gunfire. "You better save your energy. The wall isn't like those in ordinary houses. Not to mention, some bastards have installed a machine gun nest at the entrance. The safety measures are way overboard."

"Give me two more minutes, and I can blow this wall," Ling Qingyu retorted.

"We don't have two more minutes. The longer we waste, the more dangerous it becomes for our packages," Tang Ziyi said. She then inched her steps toward the entrance and threw a shock grenade.

Boom!