I have been trying for quite a while. I just can't seem to get No-Hitter. I have been using the smoke bomb method and I have killed over 10 several times, yet it won't unlock. Is there anything I might be missing? I know it says in a single conflict, and I was wondering if every smoke bomb stops a conflict.
50,000-Sherlock Holmes vs. Jack the Ripper-Art Lover 80
100,000-Dragon Age II-I Got Your Back 25
150,000-Assassins Creed III-The New Tea Party 40