What precedence is used for messages that don't need special treatment but still need to be delivered as quickly as possible?

The correct answer is Routine. This precedence is designated for messages that do not require immediate handling or special treatment but still need to be delivered in a timely manner. In the context of Air Force communications, Routine precedence indicates that while the message is important enough to be sent promptly, it is not urgent like those categorized under higher precedence levels such as Immediate or Flash.

Using Routine precedence allows for efficient communication without unnecessarily overwhelming communication channels with high-priority messages. This ensures that urgent needs are met without sacrificing the timely delivery of less critical information. This is particularly important in a tactical environment where various types of messages are constantly being transmitted, and the prioritization of messages ensures that all communication flows smoothly.