The front line battlefield of the Guardian Sea was not the Star Sea Broken Cliff, but the end of the Skynet.
Their main combat power was at the Carefree Level or the Immortal Level. There were also a few Great Monarchs guarding.
When Han Fei flew past the Skynet, he found that there were more Carefree-Level cultivators here. He would see one every once in a while. And when he came to the end of the Skynet, he found that almost every Purification Star at the front line had strong masters temporarily guarding it.
Outside the Purification Star, he perceived that there were nearly 800 battlefields where fierce battles were taking place.
These strong masters mainly stayed on the purification stars in the Skynet to kill ominous creatures.
It was called sniping because although there were many ominous creatures, they didn't have high intelligence. Their combat skills were generally weaker than the strong masters of the myriad races of the same realm.