After the encounter on B1, head down to B2. This level is a maze of storage rooms and corridors. Your objective is to find ArmsTech President Kenneth Baker. The area is patrolled by guards and has several security cameras. Use your radar to track enemy movements. You'll eventually find Baker tied up in a room. After the cutscene, you'll be ambushed by Revolver Ocelot. This is your first boss fight. Refer to the 'Boss Guides' section for a detailed strategy on how to defeat him. After the fight, collect the Card Key Lv. 1 from Baker's body, which will allow you to access new areas.
