I have discussed this issue at great length with reasonable people on both sides and respect those people who have come to intelligent and thought out positions. Their entire lives are governed by halacha and torah. This is indeed a great kiddush Hashem. There are volumes of shaalos that these soldiers have written to their various roshei yeshivos from training camp all the way to combat zones. I am not saying that this is ideal or even good for every ben Torah, but it certainly should be given due praise.
Most people know where they are.
Often these are used divisively. Anyone who does not believe in Torah min hashamaim is not orthodox. They might be very Frum Conservative, or maybe Conservodox. I have met very few people who believe they are extremists. Anyone one standard deviation less religious is modern orthodox.