The ability to maintain order and efficiency under pressure in combat is best characterized by fire discipline. Fire discipline refers to the strict adherence to rules and protocols regarding the use of firearms, particularly in combat situations. It is essential for ensuring not only the safety of personnel but also the effectiveness of operations. In intense combat scenarios, maintaining fire discipline allows a unit to use their weapons with precision and control, minimizing collateral damage and maximizing the effectiveness of their fire against enemy targets.
This quality ensures that troops do not fire haphazardly or without due consideration, which can lead to chaos and ineffective combat operations. By maintaining a disciplined approach to firing, soldiers can coordinate their actions, conserve ammunition, and support one another effectively in a high-stress environment. Therefore, fire discipline encompasses the ability to remain composed and focused, directly reflecting the core concept asked in the question.