I am pretty set on doing a 4 year contract. But everyone is telling me to do a 6 year contract since there will be more benefits and you rank up faster.AFCAP is a rapid response contingency contract mechanism that uses pre-qualified vendors via fixed price or cost reimbursement task orders. Generally speaking, in any AFSC, you can only cross-train after you've completed your first enlistment. Requirements App: The Requirements Application is used to track and manage all requirements and their associated approval documents. This form may become a permanent document that may be used as the basis for future investigations, eligibility determinations for access to classified. The Department of the Air Force has revised its regulations dealing with the Wake Island Code to reflect current and anticipated use. I always feared a tsunami would wipe out Wake Island. Gratuitous Services. Clause-Oh When the Saints . . .