If they really wanted to keep people from camping with Icebreaker, require that the recharge is powered by your body movements. The more you move, shoot other weapons, and get kills, the faster it recharges, up to a limit. Kills with the weapon don't count, obviously. Or, have the weapon overheat if you keep firing while it's charge is low, hitting you with fire damage and causing you to burn for a few seconds. That'll teach rotten campers, and it goes well with the flavor text. This is my point though, I don't work for Bungie and i can immediately come up with 2 relatively simple and cool ideas to change the weapon up without completely breaking it or rendering it useless. Why can't they, the people who are paid the big bucks, come up with simple design tweaks like these? Surely there is a tiny iota of creativity at their office left?