The most reliable way to download is via the ARMA: Gold Edition on Steam.
Based on technology used for real military training (VBS). ArmA: Armed Assault Stiahnite si PC hru
Because it was released in 2006, almost any modern PC can run it, though newer hardware sometimes requires compatibility tweaks. Minimum Requirement Recommended Windows XP / 2000 Windows XP / 7 / 10 CPU 2.0 GHz Intel/AMD 3.0 GHz Intel/AMD RAM GPU 128 MB VRAM (Pixel Shader 2.0) 256 MB VRAM Storage 3 - 6 GB free space 6 GB free space The most reliable way to download is via