Tss, stop making this problem bigger then it is, lol.
The mouse sinsitivity "exploit" is just like the joystick "exploits" out there.
I have a mouse where i can adjust the sensitivitie, so what? it dousnt really give an advantage to the TEAM. Just like all the people that use a joystick out there, or the speed control function on it.
If you have a problem with it, go to a shop, spend 30 pounds, euro, dollars,... and voila, you have a fancy mouse yourself, happy?
I play this game on my 2 year old 15,4 inch laptop, on low settings, do you hear me complaining that its not fare that people that have bigger screens and better pc's can see much more details then me and therefore have an advantage when using a rifle at distance? This is a computer game people, some have better computers then others, it gives certain advantages, dont like it? buy a console and GTFO