So since Wednesday and Thursday today I have been grinding the nightfall on normal and prestige. Trying to get the auto rifle since everyone else seems to get it on there 3rd or 10th try. I have done the nightfall 54 times and tracked each one. It still does not drop for me and I may just have bad luck or there maybe something wrong with the droprate. I do not know but it makes me feel very depressed that I grinded for so long and still get nothing. I'd rather grind for Osiris's helmet for my Titan then grind for this auto rifle. I don't know but I grinded for DFA 20 times last time. No luck. Now I've done this and still nothing. This is my feedback. I'm done grinding and got to go to work feeling dissapointed.