Well some guys were saying that there was a few guys on here in the military. (what did you guys do)
.. Couldn't imagine doing another MOS!!
I would say that it's very difficult to focus on any kind of weightloss while being over there because you cannot afford to be picky with the very limited food selection. When I was over there (2003 when it started), we only had MRE's to eat.
Just focus on doing some PT in your spare time (pushups/pullups/ect) when you get relieved from your post and concentrate on COMING HOME!!
Trust me, when you get home, it won't take long to get the bodyfat down when you have more flexability in your diet and supplements at your fingertips.