I don't see the big deal. Whether we like it or not these ARE technically adults. Their choices are none of our business. And PLENTY of people in the military (ie, by brother and essentially every single one of his friends that I've met) play video games now and then, some very often in their free time. One of his fellow officers is even a raging nerd (I talk to him the most because we have the most to talk about).
Video games are just something young adults do these days. There's nothing wrong with the military obliging them. I sincerely doubt they're gonna win over any kid that wasn't already seriously considering it, and if it wasn't games it'd be music, movies.
I spoke to a recruiter (AND my brother), and there's no a single military man who would ever tell a kid or even insinuate that combat is like a video game. We're putting words in their mouth. All they're doing is providing the entertainment required to get the young men in the door. Like I said, if it wasn't games it'd be movies, tv shows or music.
And let's all remember recruiters got a real raw deal:
article Beside America's Army, it's not like the military is actually making the games.