The hunters were not surprised as Edwards changed, preparing their weapons and firing magical bullets. There were some that were setting up a few large net cannons, others were dragging out Will and holding him at Gun point to try and make the Dragon cease his rampage.
The hunters wanted Edward alive that much was for sure, and they will go to all length to make sure that would happen. Even if that meant kill a few others during the processe, for they did not care.