Which of the following mistakes can decrease survivability in an ambush situation?

Failing to communicate with dispatch is a critical mistake that can significantly decrease survivability in an ambush situation. Clear and timely communication is essential for coordinating responses and ensuring that support is on the way. Without effective communication, valuable information regarding the situation may not reach backup units or necessary emergency services, which can lead to delays in reinforcements or critical responses. Additionally, lack of communication can lead to confusion and isolation, increasing the risk of harm during a high-stress encounter like an ambush.

In contrast, maintaining a survival mindset, wearing tactical armor, and accurately assessing threats are all actions that contribute positively to an individual's ability to handle an ambush situation. A survival mindset fosters resilience and adaptability under pressure, wearing tactical armor provides protection against potential threats, and accurate threat assessment allows for informed decision-making during critical moments.