Checking an easter egg a commenter told me about — Garry's Mod

I knew there was a jumpscare, but I still got scared D: ▄▄▬▬▬▄▄▄▄▬▬▬▄▄▄▄▬▬▬▄▄▄▄▬▬▬▄▄ https://steamcommunity.com/sharedfile... ▄▄▬▬▬▄▄▄▄▬▬▬▄▄▄▄▬▬▬▄▄▄▄▬▬▬▄▄