After the resistance base was bombed and you were taken away by the RDA, Billy guided you over the radio to get you out and destroy the base. The base had been sent to explode as you quickly made your way through the vents. “I told you that you could trust me. Now get out of here, I have to stay here to finalise the shut down. This is the last one for Billy, let me be the hero this time.” He spoke over the radio.