You can find the full game on the Arma 2 Steam Store Page .
If you are using the Operation Arrowhead expansion, ensure you have update 1.64 installed from the Official Arma 2 Website for critical Windows 10 fixes. Download Arma 2 PC Game
Quad Core or fast Dual Core (Intel Core 2.8 GHz or AMD Athlon 64 X2 4400+). Memory: 2 GB RAM. You can find the full game on the Arma 2 Steam Store Page
Ensure your PC meets these specifications for a smooth experience: Download Arma 2 PC Game