With Yue Zhong's orders, Green Stone Triad quickly established itself in Guilin City. Shang Lun easily recruited 300 male survivors from Carp Street.
Zheng Minghe then began the tough training of these 300 males, and used the military ways he learned, to whip the male survivors into shape. To outsiders, however, it was announced as militarized management. Even prior to the apocalypse, there were many jobs that required the military to oversee.
After the apocalypse had set in, many factions had switched to using similar management methods, and thus, it didn't attract too much attention.
300 people was too small an amount to Guilin City that had almost 900,000 survivors. There were all sorts of factions within Guilin City, some nearing even thousands in their numbers.