K.W.
I am a product of some DoD schooling. I LOVED my school(s) in Germany, in fact I associate myself more with my DoD school than with the school I graduated from. There was a great emphasis on college prep and academics. There were also many different extra-curricular activities for students to join. We lived off base, so it was a little more difficult to participate, but as my siblings and I got older, it was easier for us to use transportation provided and available. I would just check into the schools and their statistics and see if they meet your requirements.
I have one friend whose husband is stationed in Japan right now. She homeschooled her children for a long time here in the US, but once moving decided to put her kids into DoD schools. She loves that they are learning the language and that they have transitioned well.
I hope this helps!