on the topic of strapping a bunch of E-clips to your body and running a cable to the clip port to power the weapon all though it's a nice idea look at the down side,
well there’s that bloody grate cable to get tangled in the scrub making noise as it catches on the brush when your trying to move quietly,
Or when you’re trying to Dity-Dity getting caught up causing you to trip ect slowing your rate of movement.
Then theirs the trouble when you’re trying to deploy from a vehicle of catching on the internal fittings or tangling with the cables of the guy next to you.
If your trying to redistubute ammo (like from withdrawing, fallen or non-combat operative comrades) you have got to go through their webbing unfasning it to get to the ammo in steed of simplify liberating it from their ammo pouches. it also prevents easy hand off of a weapon should need be.
its difficult to ditch the weapon should it get busted or if it's acting as unwanted ballast or encumbrance, all though it prevents Your govements small arms ending up on the never fired, dropped once. Resale markets.
When it dose (and it will) get caught on something there is potential for damage to the clip rig, the connecting cable or the weapon it’s self any of witch can effect the performance and /or safety of the weapon or prevent it from firing (not good).
It is my opinion that for the above reasons that not using a self contained weapon is a good idea the stealth and movement I have leant from hunting (Roo’s, pigs and feral cats mostly) the others where logical supersisions that have bean confirmed by talking to a dozen people with combat training (over half with combat experience) in land warfare (from three separate generations) some of who are still serving in the ADF or Reserves in the past few days, all thease people said that dangily bits are a BAD THING,and said that unless there is a darn good reason that any free swinging bits should be avoided at all costs.