@justlilme I saw that. It is the reason I tried to play again, sadly it was not mentioned in the changelog so I am assuming it hasnt made it in to the update, and if so.. it still isnt working.

*STILL UNFIXED
Razer naga 2014 expert MMO mouse, windows 7 64bit, no problems in 3rd person or free look,but in 1st person (even while ADS) same thing as others, move the mouse too fast horizontal and you get drastic vertical movement. game killer. should be far higher priority than it currently has. I understand that it is not an "easy" fix but this issue is not getting the love it needs. Hope to start playing again sooner rather than later.