Look, I will always take some needed supplies and equipment while on a mission. Everyone does, you need to plan for what you doing.
Here is a small list of what I would take if I'm going to stage out of someone else's fire base. US, NATO, ISAF, Coalition, etc. (added) You can say your going on a combat mission, but you will almost always need to build something for your ODA. DEMO Charges, Weapon Racks or mounts. Fix something that gets broken. So they way I roll is I bring what I can fit into my truck or best trailer for the unknow that awaits me at the new Fire base. If it is not another ODA or ODB, I bring my "stuff" for the COMBAT mission ahead. If your going out to do a DA stlye mission you don't need this. We know that, this is from that place that you will be staging out of. Find out what is there and work from there on what your ODA needs to bring forward.
Two items that are great to have are a mechanic's tool box or kit and a spot-arc
welder kit/set.
Try to get an electrical class and a welding class for PMT training. It will help you out. KBR and Locals aren't always there when you need them.
While in country:
R&U kit:
Hammers, power tool sets (corded & cordless), a couple of your hand saws and maybe the tree bow saw. Get some nails to travel with. Plan to have wood shipped to wherever you are. If someone is “watching” your FB, ensure they know where your wood, nails, etc. are located. I run with my Cordless tool set and a hand tool bag wioth some nails in a ammo can.
DEMO:
Deploy with enough demo to make war with. Ensure that you bring (100 mile) tape, thumb tacks, rubber matting, adhesive tape and spray, as well as charge “sticks”. Bringing along some cardboard can help out too.