According to Sandy, Ainz's role was to take care of anyone trying to escape while they took care of the strongest among the rebels group, there were two reasons for this, the first was done to prioritize his safety, this made him realize Bruchaveust had said something to them, while the second, was for them to deal with the cultivators themselves.
"I guess everything is settled then, we settle off immediately, don't forget to take anything you might need along with you. In two hours' time, I hope to see everyone."
The group soon got dismissed, and they went to make their respective preparations for the mission, before everyone left a deep frown could be seen on everyone's faces, it was a battle with cultivators so everyone took the mission seriously.