When I was on active duty, years ago, there was a gay dude (suspected) that lived in my barracks. "Sweet" Mike, was always the first guy in the showers in the morning and the last guy to leave. he would stand in the corner and watch whilst soaping himself. If he was in the barracks and anyone took a shower during the day/evening hours, Sweet Mike would find an excuse to knock on the door within seconds of you getting back from the shower.
I have no proof that Mike was gay, maybe he just liked to look at other dudes dicks. He was eventually kicked out, not for being gay, but for being a lousy soldier. failure to adapt to military lifestyle.
I realize that sweet Mike is atypical of the average gay dude in the military, but it still gave me the creeps.
That is kind of a crappy example. But it sounds like he got kicked out for the right reason.