A linear storyline in which the protagonist is a special agent infiltrating a restricted area—a former military base. Previously, archaeological excavations were conducted here, and upon uncovering an ancient burial site, scientists released a deadly pathogen.

The infection turns people into mutants, and the survivors have split into warring factions:

• Some seek salvation,

• Others attempt to weaponize the virus,

• While others kill indiscriminately.

To prevent the spread of the contagion, the zone has been completely isolated—no one can leave. Yet, for unknown reasons, the authorities refuse to destroy the infected territory. Instead, once a month, they send in teams of special agents with classified missions.

The protagonist is one such operative, but he has become separated from his squad and must now find them to complete the mission…