Constant Packet Loss/Freezing MOdern Warfare

I downloaded the latest update for MOdern warfare. Hopped into a game and it just wouldnt work properly. Constant packet loss and loads of other symbols causing the game to be unplayable. Below will be a link to a video of the issue. I have no idea what is causing it? I have tried many things including reinstalling the game to no success. Any help would be great! If nothing works maybe the next update for season 6 might solve it.
https://www.youtube.com/watch?v=xSqRJ2CPVy4

Hey there,

When it comes to Call of Duty: Modern Warfare, Blizzard Technical Support is only able to offer support for install and patching. For issues with packet loss or disconnects within the game, please contact Activision Support.