I remember that for outfield, I would only bring the dog
biscuits. I would also buy one whole box of Uncle Toby's bars.
All that would last me for three days. After all, during
planning for deliberate attack, we would get fresh rations anyway.
During the rest of the time, there was hardly any time to eat
anything proper.
Needless to say, I lost an average of 3 kilos during an average
three-day outfield mission. 
bmt outfield cant bring ur own stuff sia..but yea those energy
bars are one of the best for outfields..