It is determined by their pay grade and their length of time in military service. Basic Pay, also known as Base Pay, is the same for all the services. The enlisted pay chart includes pay rates for all grades from E-1 through E-10 and for durations of military service ranging from less than four months to over 40 years.
Perturbation is an anxiety or disturbance, or is a cause of disturbance, or a from what is normal, especially when the deviation is caused by an outside influence.
Automagically is a term used when the user either doesn't want to go into the technical details of something or doesn't know the details but does know what the end result has to be. The term is sometimes used in planning and design discussions and trade show demonstrations. For example, one might say: