Controller SENSITIVITY too slow

Soon as i got the game. I set it on 10. Felt ok for the first week. Now its slow.

Halo 2: Started at like 3. Played till the game died, stayed at 5-6.

Now 343, since your idol is the COD franchise, give us a faster sensitivity like they did. Theirs goes up to 15.

I play snipers in halo 4 on 10 and its TOOO SLOW… that tells you that you NEED to speed it up.