He wanted them all to fight as soon as they joined. They all felt quite conflicted.
Even though the Alliance Master was beating around the bush, his words couldn't have been any clearer—since those three hundred were unwilling to join the Red Scarves Alliance, it meant that they were enemies and must be eliminated. Furthermore, if Lu Siping and the rest didn't go and deal with those people, it would prove that they were insincere in in their wish to join the Red Scarves Alliance. Then, they would also be branded as enemies of the Red Scarves Alliance. From the looks of things, it was unlikely that they would be able to leave unscathed if they declined the Alliance Master's request.
Zhao Fei and the rest exchanged glances and kept quiet. The Alliance Master had a better grasp of the situation than they did, and didn't need them to chime in.
