Which action is critical when needing to observe from a concealed position around an obstacle?

Maintaining a low profile is vital when attempting to observe from a concealed position around an obstacle for several reasons. First, being low reduces your silhouette, making it harder for an adversary to detect your presence. The effectiveness of concealment increases significantly when you minimize your visibility, especially in varied terrains or environments where enemies may be scanning for movement.

Additionally, a low profile allows for better control over your body movements and enhances stability when observing. This position also provides a better potential firing position should the need arise, as it keeps the observer ready to engage while still being shielded.

Prolonged observation, while important, could become counterproductive if not combined with maintaining a low profile. Similarly, keeping the weapon close can be essential for readiness but does not affect visibility as directly as positioning. Extending the body beyond cover is counterintuitive to observation from a concealed position and increases the likelihood of detection. Thus, maintaining a low profile is foundational to effective reconnaissance and remains a crucial element of tactical observation.