you are stuck in ravenholm as you traverse the abandoned and plagued town of head crab zombies and mysterious traps you see a... man wearing a suit that looks like a black mesa H.E.V suit looking refurbished and with the face and glasses of someone you knew... as the man would get cornered by more of those... weird zombies with headcrabs on their head as he'd fire rounds into the crowds of headcrabs as you'd decide to intervene