Any one of them could be your classmate, your neighbor, or your friend. Just like any other college student of the University, they are also required to finish their National Service Program subject (NSP). Aside from choosing the Military Training Service (MTS) as their NSP subject, they also volunteered to serve their fellow Thomasian MTS Cadets and Cadettes by undergoing thorough and rigid trainings so that they can be qualified to lead, instruct, and inspire patriotism among their fellow Thomasian MTS Cadets. They hold the rank of Cadet Second Lieutenant (C/2Lt) up to Cadet Colonel (C/Col) and they are classified into 4 class-levels: the Fourth Class (4Cl), Third Class (3Cl), Second Class (2Cl), and the First Class (1Cl). The 'First Class' is the highest level.

Aside from the MS-1 training, an MTS cadet must enroll in the School for Cadet Officers (SCO) and finish its 10-Sunday Training course. The Third Class up to the First Class Cadet Officers must undergo Advance ROTC Training. Incoming Third Class and Second Class Officers must finish the MS-23, MS-31, & MS-32 courses, while MS-41 & MS-42 are required for First Class Officers. The Advance ROTC courses are held during summer vacation.

Thomasian Cadet Officers get 50% up to 100% scholarship. They may also take their optional P.E. exemption. After finishing their Advance ROTC Courses, they can take up the 3-months P.O.T.C. (Probationary Officers Traing Course) and be eligible for commisionship in the Armed Forces of the Philippines. Those who wish to pursue a non-military career after graduating from college may find their experiences in the Corps to be the foundation of their success. Cadet Officers are experts in Methods of Instruction. A skill they can find very useful if they are concurrently pursuing a career in Education. They are also exposed in the operation, logistics, and administration of the Corps making them the best potential managers in the corporate jungle.