This counter will run until November 16, 2024 (November 16, 2004, HL2 came out, and perhaps, VALVe will update HL2 for an HL1-style anniversary update in 2023. About the Combine Advisor in the door, Half-Life 2 - Episode Three would have Advisor battles in Episode Three or Half-Life 3. I think this Advisor was made in Source 2 (Half-Life Alyx) and not in Source Engine (Half-Life 2).
Another fake site AFAIK
This counter will run until November 16, 2024 (November 16, 2004, HL2 came out, and perhaps, VALVe will update HL2 for an HL1-style anniversary update in 2023. About the Combine Advisor in the door, Half-Life 2 - Episode Three would have Advisor battles in Episode Three or Half-Life 3. I think this Advisor was made in Source 2 (Half-Life Alyx) and not in Source Engine (Half-Life 2).