I mean there's gotta be someway to access the game's settings via a .txt file, like in other games such as Call of duty. And you could edit there, but finding it is something else.
If you're an Nvidia user, which 1 of you guys must be, you can also use the Nvidia Control Panal to force Vsync on or off. Other than that download a driver tool for ATI graphics cards like the ATI tray thingy like BOTA:49