Since official servers are dead, the only way to experience CSO2 is through or private servers. If you choose to look for these files:
Counter-Strike Online 2 was a tactical first-person shooter developed specifically for the Asian gaming market. It served as the sequel to the massive hit Counter-Strike Online and aimed to modernize the classic CS gameplay with better graphics and physics. Key Features CSO2 | Counter-Strike Online 2 - Download
is officially closed and cannot be downloaded for official online play. Since official servers are dead, the only way