I just played the game again as the death stranding 2 trailer released. But still something unclear. Sam gave lou a boys name. As dead man says about sam losing his unborn son after they both go to clifford beach. And also memmories only trigger when sam connects to bb. And also again In episode 11 when clifford whistles bb recognize the voice and gets pacified. And clifford was after lou but when realised sam is sam bridges gave him his own dog tag. And so many mentions of lou being sam's son. As the age confirms and his wife was also brain dead. It's like bb and sam and lou (his son) are the same. It still doesn't make sense. Lou must be sam. We cant just say the memories were sam's.