I have it on the majority of my classes, and pretty much all of my SnD classes. It's pretty bad in this game though. The class I mainly run uses the shield, ballistic knives, a tomahawk and concussions, and the shield is pretty much used to get in closer to people safely. I've been using it since launch on a regular basis and I only actually have 400 some odd kills with it.
Leader of the 1 Horned Pink Bunni clan. You can be a pink Bunni too, all you have to do is ask.