Gin continued to jump through roofs together with Jasmin for minutes now.
Jasmin decided to follow Gin as she doesn't have a group to be with. She did it because Gin is alone. She could only think right now and would help Gin if there is something that needed to be answered.
In Gin's group, the grouping's are still the same.
On the other people he didn't know, he just decided to let them group by themselves as he knew he couldn't convince them. Heck, Gin thought that some would be trying to solo but he insisted earlier that they must be grouped with a person that had a video device.
All of that for one reason; Revenge.
To justify the death of their comrade, they needed to take revenge. Gin welcomed it though as people devoid of emotions were needed in here. To be exact, a shield for those bombs if they decided to just enter some house, not thinking about consequences.