I noticed that when I play in Practice there is lag. I don't see any reason for their to be lag for a mock battle against an AI. Why not make it so AI battles run on the user's local server rather than server-side?
Because there are times when you can't help but deal with your family using the internet at the same time as you but you want to play the game. Also, not all players have stable connection to the game's servers. No kidding, I'm enjoying this game. I've enjoyed it since Warfare 1917 and Warfare 1944 so I want to at least experience playing this one without lag. That would be awesome.