There was a concept called the Dark Forest
The hunters must exercise extra caution as the dark forest was full of hunters like themselves. Any signs of exposure might result in themselves being destroyed by other civilizations.
Now, the situation in the forest was the same. Neither the Heavenly Network nor other organizations knew the exact location of each other and the exposed teams would put themselves in an unfavorable position.
This was also why the Heavenly Network operation squad was so careful when they approached the campfire.