This might be a long shot, double check to see if you have triple buffering forced on within your catalyst or nvidia control panel. If you have it forced on, either force it off or allow application to run it. That has been known to stop the game from launching. I would also use these commands to try to help with FPS since the game isn't completely optimized yet.
r_useMotionBlur 0
r_shadows 0
r_useThreadedRenderer 2
And use this one for fun,
com_bootLogo 0 (pretty sure this disables the intro all together, so you might be better off using this command line than renaming something that the game is looking for, although it usually just skips it since it's just vids
If you need, create an autoexec.cfg file within the games default cfg path, Steam/Userdata/"numers"/22350/local/base and just make sure you put "seta" infront of all the lines. You can also drop the console with ctrl+alt+~ and enter them there as well, although, if you do create the autoexec file, add "seta com_allowConsole 1" to the file so that the ~ key is only used to call the console. Hope that helps