Tick tick boom. Activision has acknowledged server issues plaguing Call of Duty Warzone 2.0 since the release of Season 3. In a tweet, Activision said it's trying to resolve the server issues now So, if you are still experiencing lag in the gameplay, the problem is likely on your end. Probably packet loss or high ping rate is to blame. Anyway, the good news is that there are plenty of tried-and-tested fixes that will help to reduce lag when you are playing Modern Warfare 2. Let's take a look. How To Fix Lag In Call of Duty: Modern Warfare 2 tn4HN.