Eye for an eye, tooth for a tooth. Moye had raided the humans' command center, and in return, Wang Tong had captured his castle. This was the most severe response that the humans could ever give, and it had hit where it hurt the most.
After such elating news, Zambrotta seized the opportunity and ordered his forces to march out and attack the Zerg cities. After his forces sacked a city, he would copy Wang Tong's method and raise the flag of the Martian front, and then upload the pictures to the skynet. These pictures had proven that the humans were not helpless before the Zergs, and they could defeat the dark ones as long as everyone united together.
All factions followed Zambrotta's lead and attacked the Zergs with abandon, swiftly liberating many Zerg occupied cities. The Zergs were caught off guarded by humans' sudden comeback.
