What type of briefing is CPT Nelson giving when presenting training scenarios to the commander?

The type of briefing that CPT Nelson is giving when presenting training scenarios to the commander is a decision briefing. This type of briefing is designed to present the commander with information necessary to make informed decisions regarding operational capabilities, strategies, or resources. It typically includes relevant analysis and recommendations based on the scenarios presented, enabling the commander to assess options and make choices that directly impact mission outcomes.

In the context of presenting training scenarios, the focus would not only be on the status of current training but also on the implications of those scenarios for future training decisions, resource allocation, and operational readiness. Thus, the content is aimed at guiding the commander toward a specific course of action, which aligns perfectly with the purpose of a decision briefing.