What the h%#$ is wrong with MCC

What happened to MCCs aiming, the slightest touch of my brand new controller (literally bought today) and my aiming is thrown way off missing my target, and why was I banned for leaving one match after frustration of this issue, tf is your problem 343

For any queries on matchmaking bans, please use the ban thread pinned at the top of the main MCC forums
Aiming is something that 343 are already looking into, you can follow progress the trello board:
https://trello.com/b/WPZDzEBI/mcc-support-page

If you have any constructive feedback to leave regarding aiming, please use the dedicated feedback threads in the main MCC forums. Any video clips showcasing the issue or steps to reproduce are welcome