The Hunt
A popular theory claims that big and bad are the two winning features when it comes to surviving on Rubi-Ka. Beings of disproportional size and with a nasty temper have been reported in most terraformed zones on Rubi-Ka.
You're commissioned by the Agency to kill one of them for the benefit of natural wild life and the health of the occasional traveler.
Note: Only outdoor bosses around or higher than your own level will count towards the mission goal.*********
Best guide out there to help you find an outdoor boss is
Travel to Rubi-ka Now, I know what you're thinking. This seems easy enough - find an outdoor boss and keeeel it! Well you just go right on ahead. Let me know how that works out for you. ^^