R.G. Mechanics uses Themida or UPX packers to compress their .exe files. These are the same tools malware authors use to hide viruses. Consequently, virtually every antivirus program will flag the steam_api.dll or the Setup.exe as "Generic.Malware.AI."
Force V-Sync through your GPU’s control panel (Nvidia/AMD) rather than using the in-game setting to avoid stuttering. Wolfenstein- The New Order -R.G. Mechanics-