True void heavies can take out the shields of captain/wizard equivalents, I'm just thinking bosses/larger encounters that would require it more. Also on another note that brings up a thought I had previously. In the beta there were items that replenished all of your ammo and they cost like 250 glimmer. In raids and hardcore clans it seems like it would just be required for everyone to have 50 of those things and only be using their heavy ammo all the time. It had no cool down to use them either. Just a thought/concern.