I can tell you this much, I have never seen some of the things on that list. I am a US Marine and I carry some of those items, but a mess kit, utensils? Not really. We also dont carry the 45's anymore. We do have packing lists, but you mostly carry what you want, or think you need.

Pack
two or three sets of utilities (depending on how long you will be gone for)
Gortex top and bottoms
two pairs of boots
socks, lots of socks
782 gear which is some sort of load bearing equipment including:
two canteens
ka-bar knife
butt pack with extra gear (socks, food, PSK, bungee cords etc)
folding shovel (e-tool)
at least three flashlites (this has been a huge issue about batteries until I bought a few photon lights in different colors, mostly red and white, although I have IR light for Night Vision Gear)
two compasses
coleman camp stove
water proof bag of some sort
Baby wipes,
toilet kit (shaving, toothbrush, fingernail clippers, etc)
EXTRA BATTERIES for evything I bring out with me to include my mag light and photon lights. The military flashlights use D-Cell batteries that you can get through the supply system.
Camel Back
weapon cleaning gear
sunscreen
bug repelent
and other things, I have it all packed up all the time so I dont have to worry about it when I have to go the field.

THere are quite a few of us that by civilian camping gear, as long as it is balck or OD green

Hope this helps,

Garrett