I'd say the mess hall. eat eat and eat some more. If you can get your hands on some C-RATs or something to up your Kcals i'd go for that.
The problems you're looking at is Heat, sand, and hydration. The heat would make keeping
protein suppliments tough. ALso keeping powders sandless would also be a trick. I'm leary about the
creatine because of hydration issues.
I'd just seriouly up your Kcal intake. You are so active it's not like you're going to get fat.
la'
Redsol1