In the video I remember seeing a tracker type sight as an attachment.......sigh.
apparently theres a "target enhancer", and a "tracker"...
Not a lot of info on either... but the target enhancer seems really dumbed down. Instead of every player on your screen having a red box on them (like the target finder), it looks players glow only within a small window.. so like a bad thermal scope.

The tracker, isnt a tracking sight it seems... it just makes enemys that you hit show up on radar.