Rather than ignoring the multitude of people disagreeing with you and telling them not to post, perhaps you should acknowledge its time to change your view. Smoke + nade requires 2 perk choices, a melee and nade charge, and if you want to use it frequently requires giving up almost all your int (= much fewer supers). You basically build your char around it. It's also not that hard to avoid if you play thoughtfully, and is quite survivable if you stick with your teammates and don't panic. Frequently dying to smoke nade indicates a problem with your play style, not with the combo.