The employee does not obtain particular benefits under the plan from rendering service in Federal employment, because he or she would have been similarly covered by the program if privately employed and would have obtained similar benefits.
The employee gets no special benefits under the plan in Federal employment. 
mnli hypothesis: The employee gets no special benefits under the plan in Federal employment.  premise: The employee does not obtain particular benefits under the plan from rendering service in Federal employment, because he or she would have been similarly covered by the program if privately employed and would have obtained similar benefits.