How Come the Bandits in Mobei Langyan Have a Plane?

In the troubled times of the Republic of China, bandits were rampant in Mobei, and Shenjia Village was massacred. In a desperate situation, Shen Li awakened the arms exchange system and unlocked a series of weapons made in Hanyang, Ruger P08, and standard grenades. He relied on standard firepower to defeat more with less, guarded the remaining villages, wiped out the invading bandits, and fought for a glimmer of hope in the troubled wilderness. He vowed to use guns and cannons to establish justice in Mobei.