I get having to work for an exotic and I will do that but, WTF with the farming nodes! I started farming 3 days ago and after over 300 Helium (from nodes) I have exactly 0 of 10 rare materials. I'm using a shell and a sniper for finding the nodes. Lap after lap on the moon and not one rare material. BUNGIE, I farmed for year 1, can't you be a little more original? At least make it a number to collect instead of guessing!