Umbrella Biohazard Countermeasure Service

The Umbrella Biohazard Countermeasure Service (UBCS) was introduced in Resident Evil 3. Numerous squads of UBCS soldiers are deployed to Raccoon City, supposedly to search for survivors and to help contain the zombie epidemic. In fact, they were deployed so that Umbrella could gain reliable combat data regarding their biological weapons—a fact known only to their supervisors (who never expected their forces to be wiped out). One of their members, Carlos Oliveira, is a main character in the game. UBCS members are also depicted in Resident Evil Outbreak-Files #1 and #2- and The Umbrella Chronicles.

The UBCS was founded by former Soviet Colonel Sergei Vladimir. The service is mainly composed of "nightmen", mostly former mercenaries and war criminals recruited by Umbrella and trained to deal with "problems caused by illegal products." In Resident Evil: Apocalypse and Extinction they are referred to as the Umbrella Biohazard Countermeasure Force. :hammer: