At 12:00 on September 29, 1998, Umbrella, under article 12 of their Internal Emergency Procedures, surrendered control of all materiel and personnel still within Raccoon City to Colonel Sergei Vladimir. The colonel's mission orders for the Raccoon City mission were enacted within hours; at 20:40, an SH-60B ASW helicopter carrying six T-103s flew over the Raccoon City Police Department. Of the Tyrants inside, five were tasked to annihilate Army SpecOps investigating the Incineration Disposal Plant P-12A.; One of them, T-00 (designated "T1" for mission convenience), was assigned for another mission: to complete HUNK's mission by obtaining any surviving sample of the G-virus and return it to Umbrella, and to execute any surviving police officers it encountered.