When faced with an armed threat with limited cover, which principle should be applied?

When confronted with an armed threat and facing limited cover, the principle that "action is faster than reaction" is crucial for survival. This concept emphasizes the need to take proactive steps rather than waiting passively, which can result in diminished response options and increased vulnerability.

In active shooter situations, the ability to act quickly can significantly affect outcomes. Instead of waiting for backup or trying to find a place to hide, taking immediate action—whether it’s seeking a safe exit, using obstacles for cover, or preparing to engage if necessary—can disrupt the assailant’s plans and provide individuals with a better chance of survival.

Proactive action can also help to ensure that individuals retain a degree of control over their fate in a rapidly evolving crisis. By making the first move and not allowing the assailant to dictate the pace or nature of the encounter, those faced with a threat can create opportunities to escape or defend themselves.

The other options, while they may seem reasonable in different contexts, do not prioritize immediate self-defense or survival tactics which are vital in life-threatening situations.