1.Run Crysis.exe from 64 or 32 in windows vista compatibility mode without service pack 1 or service pack 2 2.Please choice any resolution in game settings and start new game 3. Press [1] to Pistol 4. Press [2] to SMG 5. Press [B] To Silencer to SMG 6. Press [G] to throw Grenade FOLLOW RED LIGHTS AND KILL EVERYONE