: Former enemies from the US (NSDF) and Soviet Union (CCA) have united to form the International Space Defense Force (ISDF) to face a new alien threat: the Scions.
: Players eventually play as the Scions, an evolved race born from human experimentation with Bio Metal. Battlezone II: Combat Commander
: The campaign features a conspiracy-laden plot where players' choices lead to one of two alternate endings. : Former enemies from the US (NSDF) and