I'm not gay myself, but I am in the Navy (har har) and another guy on my submarine came out after DADT was overturned, and I was surprised because he has exactly the same taste in games that I do, and is a pretty serious gamer.
Why should this surprise me? I don't know. I have had multiple girlfriends who liked games... but to this day I still remain a little surprised when either a girl or a gay guy has the same level of interest in computer games, etc as I do... I am still hung up on that stereotypical idea that it's a straight guy's thing.
That's not what I think it should be and I have no problem at all with gay people, I'm just saying it's a hard fact for my brain to process, for whatever reason.