One day two Space-Marine Rangers left the locally Bar, somewhere on Mar Sara, when suddenly Zerglings appear on the other side of the road...
In this scenario-mission you will be able to control one-of-two marines. The chosen-one who is the Ranger must stay alive at the hole scenario-mission. You and your Deputy-Ranger have orders to patrol this Mar Sara Colony, to prevent the crime and rumors about Zerg-activities. The scenario consists of small mission-quests you have to reach, to go on in the storyline.