Recruitment and training   In recruitment it says that Delta is only for Army green berets and Rangers who want to try out for itor are asked I guess  However links under Background show a recuitment ad for all millitary personel to come to a st Special Forces Operational DetachmentDelta orentation  It lists a bunch of requirments that someone must first have but it specifically states that Delta is open to people from other services  Which one is right  Is delta open to all branches or not  Its a little unclear