What is the primary duty of an observer in first round fire for effects missions?

The primary duty of an observer during first round fire for effects missions is to accurately locate targets and call for fire support. This role is critical because the success of the mission heavily relies on the observer's ability to identify and describe the target clearly and precisely.

The observer must use their knowledge of the battlefield and fire support systems to provide accurate coordinate data or target descriptions to the firing unit. This ensures that the fire support can be effectively directed to the intended target, maximizing the impact of the munitions and minimizing the risk of collateral damage.

In first round fire for effects missions, it is especially important that the observer delivers timely and precise information, as this initial round can set the tone for the success of the entire operation. While other duties such as monitoring enemy troop movements or assessing environmental conditions can be important in the broader context of military operations, they do not directly contribute to the immediate mission of calling for fire support in the way that accurately locating targets does.