Pretty easy really...
1. you can create a new account, reverse boost and check the lobby you get.
https://www.youtube.com/watch?v=NOiDZnjSAZU&feature=youtu.be
Hilarious.
2. You can check the SPM / KD of lobbies you get and how many games are found.
With high KD players the 50 available games goes to 2 and they are waiting 5 minutes for a game. The spread of SPM and KD tells you everything
3. You will notice poor pings more often
I noticed it immediately, UK player I get 15 ms ping in TDM every game or less. Over this weekend I start getting 50 or 75 and a disgusting 100 ms ping. Hit markers and janky for days.
4. Everybody noticed it immediately
https://www.reddit.com/r/blackops3/
https://www.youtube.com/watch?v=U8wV89SKXgY
They have reverted the weekend patch...for now. Usual arguments of dummies vs dummies, pub stompers,,,,,and good players cannot get matches and everyone lags, and players reverse boost so they can get nuclears really easy...
Its crap...they justv need to make sure connection is no 1 and then balance out the teams...