 Facilities for the Corps of Cadets are located in the Quadrangle , or " The Quad " , an area consisting of dormitories , Duncan Dining Hall , and the Corps training fields . The Corps Arches , a series of 12 arches that " [ symbolize ] the spirit of the 12th Man of Texas A & M " , mark the entrance to the Quadrangle . All cadets , except those who are married or who have had previous military service , must live in the Quad with assigned roommates from the same unit and graduating class . Reveille , the Aggie mascot , lives with her handlers in the Quadrangle . 
