For what it's worth
1. a multi-tool is a must have, some units are issued them, depends on the supply system.
2. a small folder works good (I carry a Benchmade 9053 at all times)
3. a flashlight is a MUST. I can't even count the number of people in my unit that came over here with out one of any kind. if you have the money to spend buy a surefire, If you can get in good with a supply section the 123's are in the system for NVG's, ANCD's etc. Spend the money get one of the LED versions, don't have to worry about the dang bulb burning out, or breaking.