Which of the following is an example of a simulator used for training?

The conduct-of-fire trainer (COFT) is specifically designed to simulate combat scenarios in a controlled environment, allowing soldiers to practice their firing techniques and decision-making skills without the risks associated with live ammunition. This type of simulator enables realistic training experiences that can closely mimic actual combat conditions while providing opportunities for assessment and feedback.

In contrast, operations planning software is primarily a tool for strategizing and logistical planning rather than simulating combat scenarios. Combat experience, while invaluable, refers to real-life encounters rather than training aids or simulators. Field manuals serve as reference materials to guide training and understanding but do not provide a simulated environment for practice. Thus, the conduct-of-fire trainer stands out as the correct answer due to its direct application in simulating tactical situations for effective training.