As a top soldier before the end of the world, Xu Chengcai had a very strong sense of counter-surveillance.
Even before reaching the construction site around the Third Outer City, he had thought of all possible scenarios and had considered where to retreat if discovered.
But to his surprise, after looking around the vicinity for half a day without noticing any abnormality, a drone suddenly appeared.
This made Xu Chengcai feel a bit frustrated.
He didn't shoot down the drone because he knew that if he did so, he might never be able to join this base again.
It's not that he couldn't bring it down, he just wanted to leave a way out.
At this moment, he carried Xiao Yong, still running at a rapid pace.
Xiao Yong weighed no more than fifty pounds, which was insignificant to him; during missions in the past, he had to carry at least 30 to 40 kilograms of weapons and survival supplies.
