Any way to kick/report afk/xp farmers? (STEAM)

Games Halo: The Master Chief Collection
1

Basically Im guessing some guy/girl have a rubber band on a controller so they wont get kick for inactivity. Is there anything we can do about this?

Link for proof: https://www.youtube.com/watch?v=z1LCkd-j1oY&feature=youtu.be