Hmm, I believe that the term "openly gay" simply refers to a calm and unhesitant positive answer. If someone were to ask the man, "Are you homosexual?" He ought to simply be able to answer "Yes." And that'd be the end of it.
Nobody is saying there ought to be 'fabulous rainbow camouflage' for all the gay members of the military -- that's ridiculous. Being 'openly gay' simply means that one doesn't have to lie when asked about it.