See, now we have some great ideas again. I did factor in suit and exoskeletal repairs, with the Weldy/plasmacutter thing, and heres what i was thinking. If the spartan breaks a bone, it is surrounded with metal (pretty hard to break) so if it broke you would just weld the metal parts together. The only problem would be that could cauterize the bone marrow, therefore you should sodder it from the outside, but once that is done, the metal will hold the bone as it sets, and that basically makes the arm as usable as it was because you dont really have to worry about moving it.
The only problem is that this would all require a tool about the size of a plasma rifle, capable of holding all of this: A cutting torch, the torch's fuel, The weldy thing, more fuel, the sodder reel, the soddering tip, and possibly a flashlight.
Then I got another idea, a syringe, with a handle, kind of like a caulk dispenser. Here's the cool part. The modern military has to vaccinate everyone at boot camp and enlistment if they dont have one yet. They line them up, and inject them all with vaccines. Heres the funny part. They use the same syringe, no needle: Its pneumatic! no needle, dosent need to touch them, just shoots it into them. If a medic carried one of these for things like morphine, adrenaline, and futuristic stuff, maybe short term anestetic, they wouldnt need a million needles, and its more sanitary, but its gonna hurt.
That really simplifies the toolkit to just this:
Giant weldy/cutty/sodder gun/other thing, tool (needs a better name, something heat related?) for use on spartans
The pneumatic injection pistol and a pouch for the meds and air cans it will use. For use on normal people, and spartans.
Then your advanced futuristic-medical-kit loaded with tissue and bone mending equipment.