Leave the property and have a rest.

You have raised many questions here. Let me talk about my personal opinion.

1. Security guards belong to a special type of work, and the particularity of working hours makes it difficult for them to get overtime pay, as long as the overall working hours do not exceed the national regulations. 2. The company has the right to adjust the shift time; The employees can't accept it, so I'm afraid they really have to choose to leave. 3. Because the company dismisses employees, it needs to give employees economic compensation; Employees are required to write resignation reports, so of course there is no compensation and no unemployment benefits. A situation like yours is very special. Can you negotiate with the unit and ask the individual to write a resignation report, but at the same time ask the unit to issue a certificate of dismissal, and the individual will waive the right to claim in the report. After all, unemployment benefits have nothing to do with the unit, but are given by the state.