Which of the reported data elements are used to directly determine a Marine's composite score?

The average proficiency mark is directly tied to a Marine's performance and is a critical component in calculating the composite score. The composite score is an essential measure that reflects a Marine's overall performance, readiness, and potential for promotion. This score typically consists of factors such as proficiency in their military occupational specialty, physical fitness, and leadership capabilities.

While elements like martial arts belt achievement, books read from the Professional Reading Program, and combat water survival qualifications contribute to a Marine's overall development and skillset, they do not directly influence the composite score calculation. The average proficiency mark, however, is a quantifiable assessment of a Marine's abilities and contributions, making it integral to the composite scoring system used for evaluations and promotions.