The S-3 is responsible for plans, training, and operations. Specific duties include:

1. Prepare and post weekly training schedules and maintain training files.
2. Develop and publish letters of instruction for special training or ceremonial events (Veterans Day ceremonies, Memorial Day activities, etc.).
3. Maintain the Cadet Library (inventory, loans, text requisitions, etc.).
4. Plan for and supervise ROTC ceremonial units (Color Guard, Honor Guard, Ranger Challengs, and Firing Details).
5. Prepare Certificates of Training (DA Form 154) and Cadet Challenge Certificates for signature by the PMS.
6. Maintain the ROTC classroom and a bulletin board for training information.
7. Prepare the gym or DP field for use by the Battalion for PT Â and other events.
8. Maintain a record of all extracurricular activities conducted by the Mean Green Battalion.