I've done CE 6 times total. I have every weapon but the shotgun. The only double I got was the fusion rifle. I doubt I will ever do normal again, since I already have 2 shotguns better than CE raid one. I guess if i get one more fang, 3 more words of crota, and a crux, maybe I will go back and try to get two more black hammers and 2 more hungers. But with the new xpack only about 60 days away, or less, doubt I will have time for that.