The STG-99 (A.K.A "Automativ Kalashnikov 1899") is a weapon that was made secretly back in the late 19th century Germany. The weapon's designs were lost for the next 138 years until the Anti-Amazons in the year 2037. Many members of Division Delta Codenamed:Anti-Virus, the New Amazons and even the South Korean Anti-Bioterrorism Force are known to have captured a large amount of these weapons while battling the Umbrella Fascist Group.