Forum:I hate to be that guy (Inverting X-Axis)

I just got the game and noticed there is no way to invert the X-Axis. I am one of the few who has to have that inverted in order to shoot. I researched the issue and it seems there was a patch that fixed the issue but I have no idea how I get it on my system. I have the game of the year edition, any help WOULD BE GREATLY APPRECIATED.

Thanks