Gameplay has declined. Emenies are bullet sponges.

Enemy appear to do more damage and be able to kill me through walls when I'm not in their line of sight. This is happening more and more.

Give us Kill Cams. I'd love to see what the other player does. There are too many instances in this game now where if I did the exact same with the same class, same weapon. It wouldn't play out the same.
This game needs further balancing. Overall its an enjoyable game. But its frustrating in areas I think it doesn't need to be.