After establishing his authority, things went smoothly thereafter.
Four bio-humans, riding motorcycles, led the way obediently.
Upon reaching the outskirts of Liang City, the drone had just completed its upgrade.
It had upgraded from LV3 to LV4.
The flight time extended to four hours, and the charging time was reduced to twenty minutes.
The effective range of thermal detection and night vision reached five hundred meters, and the communication distance with the train was also extended to five hundred meters.
Of course, the communication distance with Gao Fei was also extended to five hundred meters, which could help Li Teng expand his field of view from five hundred meters above.
The most important feature was that it could coordinate with Li Teng's firing of the energy grenade, helping to lock onto targets from a distance.
An energy shield was added, so it wouldn't be easily shot down.
