Final answer:
The question is related to a job or employment situation, but more information is needed to provide a complete answer.
Step-by-step explanation:
The question seems to be related to a job or employment situation where a qualified employee is stationed at the forward end. The phrase 'NOT a (4-84)' suggests that a specific requirement or condition is being mentioned. However, it is not clear what '4-84' refers to without further context. To fully understand the question and provide an accurate answer, more information is needed.