Which of the following is NOT a type of command in drill?

In drill and ceremony, commands are essential for maintaining order and discipline. The terminology surrounding commands helps delineate how they are communicated to troops.

A two-part command is a common format that includes a preparatory command followed by a command of execution. This ensures that the troops have time to prepare and understand what action is expected of them.

A combined command merges both parts into one succinct directive, allowing for quicker execution and maintaining the flow of the drill without unnecessary pauses.

Supplementing commands essentially provide additional direction or clarification, often used to support the main commands when further detail is needed.

On the other hand, the concept of a random command does not exist within the structured framework of military drill. Commands are deliberately structured and not given at random; they follow a specific order and rationale to ensure clarity and effectiveness. The absence of 'random command' distinguishes it from established types of commands within drill, making it the correct answer to this question.