Being an ultra right wing Christian conservative who proudly served this country for 13 years, my opinion is this:
Gays are already allowed to serve. Don't ask, don't tell. If one were to come out and announce they were gay, act gay, make it a point to let everyone konw he/she was gay, well they probably wouldn't make it back form their tour of duty.
If you want to be gay in the military, fine. If you want to make it a point to be gay in the military, I wish you the best of luck making it back without any harm.
Us straight folk don't make it known to everyone that we are straight. We don't wear special rainbow pins or have secret code when I get the inklin' for a hummer. It is your choice, but I prefer you keeping it on the closet, because you know what queer-bait, no one cares one iotta if you are gay.