Yeah so, after playing it a lot yesterday on PC.
Ground War just isn't really good. It's fun at times, but it's way too messy. The game is much better on it's core modes. Those are really great and fun modes, specially Headquarters. The gunplay is fantastic, specially the way the game behaves in ADS, there is sometihng so satisfying on it. On the PC, the game looks and runs great (Ground War is rough though), not so much on PS4. So far, so good.
The really special stuff is CrossPlay. I say it's a 90% success. I played a lot on PC with controller, It must have been weird to a lot of people seeing the lobby full of console and just one lonely PC controller player lol. Only had two matches where it paired controller with M+KB players. It didn't really felt much disadvantage, but I guess that playing at a good framerate helped a lot even with controller. Nevertheless, being able to say "I don't want to use M+KB after a long day of office work", and play at a good level against other controller players, from a PC, is, to me, groundbreaking.
It would be better if it never paired M+KB with controller, but as I said, I really didn't feel at a high disadvantage, but it may be so I hope it improves.