I'm not giving Destiny specific advice, it's just general PvP advice which applies in any multiplayer PvP game. Knowing how to play doesn't necessarily matter if you just aren't good enough to implement it. Personally, I'm just not consistent enough with my snipes, but those who are can utilize these tactics to great effect. On a side note, I've been using No Land Beyond as my primary in PvP since July. You of all people should know that this is a game where you either stomp or get stomped. Very few players actually have an "average" K/D. It's a lot of people with >2.0 and a lot with <0.7.