I thought that it would be cool to have this as some rare or ultra rare REQ item, especially after seeing it in the campaign as a legitimate item. The Armour Restraint should be a throwable REQ item that sticks like a plasma grenade which upon impact immobilizes the enemy for a set period of time like it does in the campaign allowing the player to kill him.
Now, this would be hilarious to use. I’m not sure how practical though, but it would be great. Even better if you could lock their armor up, throw them in the back of a Warthog and parade around a random guy you just captured.
Armor lock a few guys then set them up like bowling pins and run into them with a ghost. Spartan bowling.