I Picked up Airdrops in the Rivers and Lakes

A place with airdrops is called Jianghu! Rumor has it that a large dark green umbrella will randomly fall from the sky in the rivers and lakes, with a big red box covered with blue nylon cloth hanging below. After landing, red smoke will rise, and some strange things will appear inside... Xun'er came to inject me with adrenaline, Xiao Yan taught me how to use 98K, and Tang San taught me how to use the Buddha's Angry Tang grenade... The Crown Prince of Beijing gave a wry smile, I just want an M4, why is it so difficult!