I just thought of something while tagging enemy cell in singleplayer. I thought it'd be cool if there was a counter that displayed how many enemies you (and your team, for mp) have tagged, and it counts down when you kill each one.

I know it's only a little addition and it might not even be necessary, but I think it might be cool, and it'd add to the tactical gameplay. I'm suggesting it for singleplayer and/or multiplayer. Anyone think this might be a nice addition?

Why would this be useful?