Duke didn't leave all the fighting to Kisha; he took care of the zombie that slipped through the crack, ensuring the street they had come from was clear of any further threats.
With only the two of them and no need to hold back, they utilized their awakened abilities to carve a path forward. However, as they approached the location marked on the map, the zombie horde thickened noticeably. Kisha sensed that something was amiss; a B-class mission was proving to be as challenging as the rescue mission she had undertaken with the Winters.
She struggled to understand the mission description; as far as her memory of the area went, there were no mountains or anything resembling one nearby. She pondered the possibility of it being a rescue mission, given the emphasis on "saving the 'mountain'" and the phrase "community savior" in the description.