I recently purchased the Master Chief Collection in hopes of reliving the campaigns that I remember from years ago. After starting the Halo:CE campaign I noticed that my horizontal and vertical sensitivities were VERY different. When I went to the settings there was no option to change the vertical sensitivity. Every modern game either defaults horizontal and vertical sensitivity or allow for you to change them individually. Even Halo 5 allows you to do this. So why is this not an option? Please add the ability to change the vertical sensitivity.