1. I believe it was 500 kills just like the plasmas grenades.I forgot what it was but it is NOT 1000.

  2. It feels good once you finished the Plasma Pistol commendation. I suggest you complete Plasma Pistol Commendation first to get it out of the way. That's what I did. But yeah I know how you feel.It took such a long time for me to finish the Plasma...