Use the Valve Developer Community or SteamDB to track legitimate updates.
Downloading game updates via .rar parts from non-official sources exposes your system to trojans, miners, or ransomware. Hunt.Down.The.Freeman.Update.1.part1.rar
The official "Update 1" was intended to fix missing cutscenes, developer textures left in maps, and lighting (cubemap) issues. Use the Valve Developer Community or SteamDB to
Files with this exact naming convention are frequently hosted on and often bundled with malware. developer textures left in maps