When i played the bo3 beta I was good. I had a 2 k/d or higher constantly. When the game released I also played well. My average k/d was 2.16 and it kept going higher but suddenly on a thursday I became so bad. I had the feeling I wasn't that precise anymore. I had trouble shooting people from far away. My k/d lowered to 2.03 already and it keeps going lower! Now I have a 5 $ mouse ( maxxxer gaming mouse ) a HP keyboard and a 5 $ mouse mat. If I get a proper gaming mouse ( razer deathadder), a proper mouse mat and a gaming keyboard should I be able to improve again ? It's just so frustrating playing awful when knowing you were so much better 2 weeks ago. I can't enjoy the game anymore. Thank you for reading.