Most of the Bionis has seen better days. After the Mechon attack, many residential areas were devastated - including the once-thriving Colony 6. Though reconstruction of this now-smoldering crater it is completely optional, there is a great sense of satisfaction to be had from seeing a huge city sprout up from a pile of rubble over the course of your 80-hour playthrough. Ok fine, we did it for the achievements and rewards. Just don’t tell the residents; they worship the ground we walk on.