Instructions
Go down the stairs when you enter the Cooker in 1955. Follow the hallway and head up the first flight of stairs you see.
Turn right and enter the lab. Pick up the Bio Formula. Turn around and activate the yellow switch on the wall. Enter the elevator.
Exit the elevator when it stops moving. Kill the guards that get in your way. Petrov, your enemy, flees down the hallway. Follow him.
Continue running down the hall, killing guards, until you reach another elevator. Take it to the top floor.
Enter the first door on the left to find Petrov. Shoot him once to kill him, and then take the E99 activation code paper from his desk.
Leave the room and head down the hall. Push the button on the wall to unlock the door. Head through the door and go down the stairs.
Kill the guards in the area and keep walking to the right. At the end of the path you will see the charging station for the E99 bomb. Enter the code in the station, wait for the bomb to charge and pick it up.