Haven’t played Call of Duty in a while, so I’m not sure it’s new, but the Kill Confirmed mode is excellent. It is team deathmatch, except you only get points if you pick up the dog tags where a player dies. If you pick up your teammates, you block the enemy team from the point.
I remember playing a mode like this in Timesplitters 2 and thinking it was a brilliant way to prevent camping, and it was fun too! Glad to see it's still around.