not sure if its me or a bug figured id better throw it out there to check, but when i try to use the kc 130 for refueling in any mission or one I've created, you get the blue icon showing were it is but its invisible. and its set correctly in mission editor. i put kc135 as well as cant remember exactly which one but one of them you can see and the other ones invisible. only had this issue in open beta.
scrap this, done a search which i should of to start with, already been reported.