OM-1 was mostly desert. There was at least one large body of water with sandy beaches surrounding it. The surface was fairly flat with few hills or large mountains.
Several crew members land on the planet in an escape pod and Warrior Bugs herd them in traps and towards the God Bug. When the 3 survivors reach the boat the God Bug rips it appart and devours Anoke whole to gain his knowledge.
Several Marauders land on the Planet and rescue the surviors.