On the Planet of Citlali.
The human versus zerg war on Planet Citlali had finally begun. Marshal Sirius was planned to stay at the base until the guardian level Zerg entered the planet. Feng Jing's role is to scout and eliminate hidden dangers like ambushes from the enemies and traps while the rest just had to kill any zergs that will enter the land and sky.
They do it in shifting schedules where they would be working one day and the other at night. This would allow one to take a half-day rest until the generals of the other sides come over. Moreover, there is Feng Jing controlling the number of enemies for their subordinates to kill with him on sight; those Guardian Zergs wouldn't dare to enter the planet unless less than half of the population with low to high-level strength are dead.