Combat Engineering RESPECT!
:D
I do pity you a bit, though...
... having to lug around that hefty M-16A2.... haven't you gentlemen anything shorter and less bulky to carry? I mean, you do ride mechanised equipment an' all... I would think a carbine M-16, M4 or at least an AK-47 are in order, non?
Anyway, I hope you had a good time (as much as possible, anyway), and that you'll continue to take good care of yourself.