Bring Radscorpion Tails to Doc Zacharius.
Doc Zacharius needs 5 radscorpion tails so he can manufacture more antidotes. Go kill some radscorpions, loot them and bring the tails back to him. Area around Junktown should had some, if you somehow didn't menage to find any just grab them while doing some sort of caravans as Rad Scorpions encounter is very common on almost any route.
- 750 Experience.
- 200 Caps.
- 20 Positive Karma.