(Capcom's primary storyline)
The 2nd Investigation Unit was a small unit comprised of Umbrella scientists and paramilitaries. The unit would be killed by leeches aboard the Ecliptic Express before reaching its destination.
In 1998, the team was dispatched to support the 1st Investigation Unit in completing the cleanup and re-opening of the Umbrella Executive Training Facility in the Arklay Mountains, which had either already been attacked or was under attack by leeches at that point. The 2nd Unit was sent on the Ecliptic Express, which was soon also attacked by leeches while travelling to its destination, with those not killed in the initial attack were infected with a primitive t-Virus strain and mutated into zombies.
- ↑ Resident Evil 0 (2002), file: "Investigation Orders".