I've disabled it and it still won't let me search for games or load profiles in the calculator. Only thing I remember changing recently is uninstall Adobe Flash but I don't think that has anything to do with my problem right?
Well since Unturned's FOV is measured in Vertical degrees then you want to match it to your CSGO VFOV 73.74 so around 73-74 FOV in Unturned. Unless you can change it through the config to make it exactly 73.74 like it is in CSGO.
What dpi people use never had anything to do with resolution. My guess would be that Overwatch is a much more fast paced shooter while counter stike is more slow in pace.