With this conjecture in mind, Yan Fei felt the world to be quite wondrous, capable of creating an unbelievable terrain through a fortuitous coincidence. After discovering the terrain here, Yan Fei immediately devised a combat plan. The drone's underbelly opened and it began to drop GBU-28 laser-guided bombs downward. The GBU-28 laser-guided bomb is an intelligent earth-penetrator with tremendous power. However, when enhanced by the drone, the power of such bomb became inconceivably great.
Guided by the quantum radar, the GBU-28 laser-guided bomb entered the underground via a descending passage, instigating the first underground explosion, which created a 100-meter-deep crater. The power of the GBU-28 laser-guided bomb ordinarily wouldn't be able to create such a deep hole, but the location being a desert and the presence of a downward underground tunnel filled with loose sand made it possible to blast a 100-meter-deep pit in one go.
