22 out of 26 NATO countries allow gays to openly serve in the military. All of the handwringing and objections have already been handled by these countries. You don't read about beatings being handed down to gay Australian or German troops, or Israeli soldiers being distracted because one of their squadmates happens to be gay.
Distractions causing soldiers to lose limbs? Who's going to be so worried about the gay man behind them that they get their legs blown off? That's about one of the stupidest and nonsensical things I've ever heard. And I hang out in GT.