What does the GST consist of?

The correct choice states that the GST consists of two tasks as specified in Chapter 5 of TC 3-04.3. This is important because it highlights the structured nature of the GST framework, which is designed to ensure that gunnery training is both comprehensive and standardized. These two tasks likely encompass essential skills and practical applications that are critical for effective performance in gunnery operations.

Understanding the guidelines and tasks laid out in the specified chapter provides clarity on what is required to successfully complete the GST. By adhering to the framework detailed in TC 3-04.3, trainees are better equipped to meet operational standards and perform their duties effectively. This choice underscores the foundational training approach in military practice, emphasizing the importance of specific objectives to measure competency in gunnery.